Quiz about Chemistry Basics Quiz

Question 1

What is a valence electron?

Accepted Answer

An electron in the outermost shell of an atom

Answer

An electron in the innermost shell of an atom

Answer

A proton in the nucleus of an atom

Answer

A neutron in the nucleus of an atom

Question 2

Which of the following is a periodic trend?

Accepted Answer

Atomic radius

Answer

Atomic mass

Answer

Atomic number

Answer

Atomic weight

Question 3

What does the periodic table group represent?

Accepted Answer

A column of elements with similar properties

Answer

A row of elements with increasing atomic number

Answer

A set of elements with the same atomic mass

Answer

A group of elements with the same color

Question 4

What is ionization energy?

Accepted Answer

The energy required to remove an electron from an atom

Answer

The energy released when an atom gains an electron

Answer

The energy required to split an atom

Answer

The energy released during a chemical reaction

Question 5

Who created the first periodic table in 1869?

Accepted Answer

Dmitri Mendeleev

Answer

Albert Einstein

Answer

Isaac Newton

Answer

Marie Curie

Question 6

How do valence electrons affect an element?

Accepted Answer

They influence the chemical properties

Answer

They determine the element's color

Answer

They change the element's mass

Answer

They affect the element's temperature

Question 7

What are the columns of the periodic table called?

Accepted Answer

Groups

Answer

Periods

Answer

Rows

Answer

Sections

Question 8

What are the rows of the periodic table called?

Accepted Answer

Periods

Answer

Groups

Answer

Columns

Answer

Levels

Question 9

What do the "A" numbers at the top of the columns (groups) of the periodic table represent?

Accepted Answer

Number of valence electrons

Answer

Atomic mass

Answer

Atomic number

Answer

Number of neutrons

Question 10

Which element is the exception to the rule regarding the "A" numbers and valence electrons in the periodic table?

Accepted Answer

Helium

Answer

Hydrogen

Answer

Lithium

Answer

Neon

Question 11

Where are electrons located in an atom?

Accepted Answer

In energy levels around the nucleus

Answer

In the nucleus

Answer

In the atomic core

Answer

In the proton cloud

Question 12

Does the number of energy levels in each atom change as you move from left to right across each period of the periodic table?

Accepted Answer

No, the number of energy levels stays the same.

Answer

Yes, the number of energy levels increases.

Answer

Yes, the number of energy levels decreases.

Answer

No, the number of energy levels varies randomly.

Question 13

Does the number of energy levels change as you move down each group of the periodic table?

Accepted Answer

Yes, the number of energy levels increases.

Answer

No, the number of energy levels stays the same.

Answer

Yes, the number of energy levels decreases.

Answer

No, the number of energy levels varies randomly.

Question 14

What do the numbers to the left of each row (period) of the periodic table represent?

Accepted Answer

Number of energy levels

Answer

Number of valence electrons

Answer

Atomic number

Answer

Atomic mass

Question 15

The number of valence electrons is equal to which of the following in the periodic table?

Accepted Answer

The "A" number at the top of each tall column (group)

Answer

The number located to the left of each row

Answer

The atomic mass

Answer

The atomic number

Question 16

What is a Coulomb force?

Accepted Answer

A force of attraction or repulsion caused by charged particles

Answer

A force that only attracts charged particles

Answer

A force that only repels charged particles

Answer

A force that acts only on neutral particles

Question 17

What happens when oppositely charged particles are near each other?

Accepted Answer

They are attracted to one another

Answer

They are repelled by one another

Answer

They remain stationary

Answer

They neutralize each other

Question 18

What happens when particles with like charges are near each other?

Accepted Answer

They are repelled by one another

Answer

They are attracted to one another

Answer

They combine to form a neutral particle

Answer

They have no effect on each other

Question 19

In which scenario do you think the particles will be the most strongly attracted to one another?

Accepted Answer

Scenario 1

Answer

Scenario 2

Answer

Scenario 3

Answer

All scenarios are the same

Question 20

In which scenario do you think the particles will be the most weakly attracted to one another?

Accepted Answer

Scenario 3

Answer

Scenario 1

Answer

Scenario 2

Answer

All scenarios are the same

Question 21

How does the strength of attraction between the nucleus and valence electrons change as you move down the periodic table?

Accepted Answer

It decreases

Answer

It increases

Answer

It remains the same

Answer

It fluctuates randomly

Question 22

How does increasing the number of protons change how strongly the nuclei of atoms are attracted to valence electrons of the same energy level?

Accepted Answer

It increases the attraction.

Answer

It decreases the attraction.

Answer

It has no effect on the attraction.

Answer

It causes the electrons to repel.

Question 23

How does the strength of attraction between the nucleus and valence electrons change as you move from left to right across the periodic table?

Accepted Answer

It increases

Answer

It decreases

Answer

It remains the same

Answer

It fluctuates randomly

Question 24

When are valence electrons more strongly attracted to the protons in the nucleus?

Accepted Answer

When they are in a lower energy level

Answer

When they are in a higher energy level

Answer

When the number of protons decreases

Answer

When the atom is in a gaseous state

Question 25

What happens to the attraction between the nucleus and valence electrons as the number of protons increases in atoms with the same number of energy levels?

Accepted Answer

The attraction increases

Answer

The attraction decreases

Answer

The attraction remains constant

Answer

The attraction becomes zero

Question 26

What is the atomic radius?

Accepted Answer

The distance from the nucleus to the outermost energy level.

Answer

The distance between two atoms.

Answer

The size of the nucleus.

Answer

The number of protons in an atom.

Question 27

How does the atomic radius change as you move from left to right across a period on the periodic table?

Accepted Answer

It decreases.

Answer

It increases.

Answer

It remains the same.

Answer

It doubles.

Question 28

In general, how does the size of the atomic radius of each atom change as you move from top to bottom down each group of the periodic table?

Accepted Answer

It increases

Answer

It decreases

Answer

It remains the same

Answer

It fluctuates randomly

Question 29

What structural change occurs in the atoms that explains the change in atomic radius as you move from top to bottom down each group of the periodic table?

Accepted Answer

Increase in the number of electron shells

Answer

Increase in the number of protons

Answer

Decrease in the number of neutrons

Answer

Decrease in the number of electron shells

Question 30

As you move from left to right across the periodic table, the size of the atomic radius tends to __________.

Accepted Answer

Decrease

Answer

Increase

Answer

Stay the same

Answer

Double

Question 31

As you move from top to bottom down the periodic table, the size of the atomic radius tends to __________.

Accepted Answer

Increase

Answer

Decrease

Answer

Stay the same

Answer

Halve

Question 32

Which of the following pairs of atoms would have the largest atomic radius based on periodic table trends?

Accepted Answer

Ge

Answer

Si

Answer

Cu

Answer

Fe

Question 33

The higher the ionization energy value, the more energy is needed to __________.

Accepted Answer

Remove an electron

Answer

Add an electron

Answer

Split an atom

Answer

Combine two atoms

Question 34

In general, how does the ionization energy value of each atom change as you move from left to right across each period of the periodic table?

Accepted Answer

It increases

Answer

It decreases

Answer

It remains constant

Answer

It fluctuates randomly

Question 35

In general, how does the size of the ionization energy value of each atom change as you move from top to bottom down each group of the periodic table?

Accepted Answer

It decreases

Answer

It increases

Answer

It remains constant

Answer

It fluctuates randomly

Question 36

As you move from left to right across the periodic table, the ionization energy value tends to __________.

Accepted Answer

Increase

Answer

Decrease

Answer

Stay the same

Answer

Fluctuate randomly

Question 37

As you move from top to bottom down the periodic table, the ionization energy value tends to __________.

Accepted Answer

Decrease

Answer

Increase

Answer

Stay the same

Answer

Fluctuate randomly

Question 38

What is electronegativity?

Accepted Answer

A measure of how strongly an atom attracts a pair of electrons to itself when bonded with another atom

Answer

The ability of an atom to lose electrons

Answer

The energy required to remove an electron from an atom

Answer

The number of protons in an atom

Question 39

In general, how does the electronegativity value of each atom change as you move from left to right across each period of the periodic table?

Accepted Answer

It increases

Answer

It decreases

Answer

It remains the same

Answer

It fluctuates randomly

Question 40

In general, how does the size of the electronegativity value of each atom change as you move from top to bottom down each group of the periodic table?

Accepted Answer

It decreases

Answer

It increases

Answer

It remains constant

Answer

It doubles

Question 41

As you move from left to right across the periodic table, the electronegativity value tends to __________.

Accepted Answer

Increase

Answer

Decrease

Answer

Stay the same

Answer

Fluctuate randomly

Question 42

As you move from top to bottom down the periodic table, the electronegativity value tends to __________.

Accepted Answer

Decrease

Answer

Increase

Answer

Stay the same

Answer

Fluctuate randomly

Question 43

Positive ions are formed when atoms __________.

Accepted Answer

Lose one or more valence electrons

Answer

Gain one or more valence electrons

Answer

Share valence electrons equally

Answer

Do not change their electron count

Question 44

Negative ions are formed when atoms __________.

Accepted Answer

Gain one or more valence electrons

Answer

Lose one or more valence electrons

Answer

Share valence electrons equally

Answer

Do not change their electron count

Question 45

Sodium (Na) atoms form ions by losing one electron, while aluminum (Al) atoms form ions by losing three electrons. How does losing more electrons affect the size of the ionic radius?

Accepted Answer

The ionic radius decreases

Answer

The ionic radius increases

Answer

The ionic radius remains the same

Answer

The ionic radius triples

Question 46

Phosphorus (P) atoms form ions by gaining three electrons, while chlorine (Cl) atoms form ions by gaining one electron. How does gaining more electrons affect the size of the ionic radius?

Accepted Answer

The ionic radius increases

Answer

The ionic radius decreases

Answer

The ionic radius remains the same

Answer

The ionic radius halves

Question 47

Describe how ionic radius changes as you move from left to right across a period on the periodic table.

Accepted Answer

Decreases

Answer

Increases

Answer

Stays the same

Answer

Fluctuates randomly

Question 48

Describe how ionic radius changes as you move from top to bottom down a group on the periodic table.

Accepted Answer

Increases

Answer

Decreases

Answer

Stays the same

Answer

Fluctuates randomly

Question 49

What is a periodic table family?

Accepted Answer

A group of elements with similar physical and chemical properties

Answer

A group of elements with different properties

Answer

A group of elements with similar atomic numbers

Answer

A group of elements with different atomic structures

Question 50

Which of the following is a property of alkali metals?

Accepted Answer

Silver and shiny

Answer

Non-reactive

Answer

High density

Answer

Brittle

Question 51

Which group of elements is described as reactive, but less than the alkali metals, more dense than the alkali metals, and silver in color?

Accepted Answer

The Alkaline Earth Metals

Answer

The Transition Metals

Answer

The Halogens

Answer

The Noble Gases

Question 52

Which group of elements consists of all nonmetals and is very reactive?

Accepted Answer

The Halogens

Answer

The Noble Gases

Answer

The Transition Metals

Answer

The Alkaline Earth Metals

Question 53

Which group of elements is characterized by being nonreactive and colorless gases?

Accepted Answer

The Noble Gases

Answer

The Alkaline Earth Metals

Answer

The Transition Metals

Answer

The Halogens

Question 54

Who created the first periodic table based on the properties of elements?

Accepted Answer

Dmitri Mendeleev

Answer

Albert Einstein

Answer

Marie Curie

Answer

Isaac Newton

Question 55

What are valence electrons?

Accepted Answer

Electrons located in the outermost energy level of an atom

Answer

Protons in the nucleus of an atom

Answer

Neutrons in the nucleus of an atom

Answer

Electrons in the innermost energy level of an atom

Question 56

What do the columns of the periodic table represent?

Accepted Answer

Groups

Answer

Periods

Answer

Energy levels

Answer

Atomic numbers

Question 57

What do the rows of the periodic table represent?

Accepted Answer

Periods

Answer

Groups

Answer

Energy levels

Answer

Atomic numbers

Question 58

What is the Coulomb Force?

Accepted Answer

A force of attraction or repulsion caused by charged particles

Answer

The force that holds the nucleus together

Answer

The force that causes electrons to orbit the nucleus

Answer

A force that repels atoms from each other

Question 59

What does electronegativity measure?

Accepted Answer

How strongly an atom attracts a pair of electrons to itself when bonded with another atom

Answer

The number of electrons in an atom

Answer

The energy level of an atom

Answer

The atomic mass of an atom

Question 60

What is an ion?

Accepted Answer

An atom that has lost or gained one or more electrons

Answer

An atom with a full outer electron shell

Answer

An atom with no neutrons

Answer

An atom with a balanced charge

Question 61

In Part 1 of the study sheet, what is the effect of distance on the attraction of valence electrons by the nucleus?

Accepted Answer

Attraction decreases with distance

Answer

Attraction increases with distance

Answer

Attraction remains constant

Answer

Attraction is not affected by distance

Question 62

In Part 2 of the study sheet, what is the effect of increasing numbers of protons on the attraction of valence electrons by the nucleus?

Accepted Answer

Attraction increases with more protons

Answer

Attraction decreases with more protons

Answer

Attraction remains constant

Answer

Attraction is not affected by the number of protons

Question 63

What do the "A" numbers represent in the periodic table?

Accepted Answer

Number of valence electrons

Answer

Number of protons

Answer

Number of neutrons

Answer

Number of isotopes

Question 64

What do the numbers to the left of the periodic table rows represent?

Accepted Answer

Number of energy levels

Answer

Number of valence electrons

Answer

Number of protons

Answer

Number of neutrons

Chemistry Basics Quiz

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