Ionization energy is...

the energy required to remove an electron

the energy required to remove a neutron

the energy required to add an electron

the energy required to add a neutron

Metals (select all that apply)

are good conductors of heat and electricity.

are found on the left side of the periodic table.

are found on the right side of the periodic table.

Rubidium has a lower ionization energy than sodium. One reason for this is that the...

valence electrons are farther from the nucleus

number of protons is increasing

number of energy levels is decreasing

number of neutrons is increasing

Which of the following conclusions is not supported by the data in the above table?

atomic radii increase from left to right

atomic radii can be measured for these elements

atomic radii decrease from left to right

atomic radii increase from top to bottom

The images here are models of atoms for two different elements. Which of the following statements accurately describe the elements represented by these models? Select TWO correct answers.

Element 1 is Carbon (C) and Element 2 is Fluorine (F).

Element 1 and Element 2 are in the same period on the periodic table.

Element 1 and Element 2 are in the same group on the periodic table.

Element 1 is Beryllium (Be) and Element 2 is Neon (Ne).

Element 1 and Element 2 have similar chemical reactivity.

Which of the following is the best explanation for the trend observed in the graph?

F has the largest electronegativity because the electrons in element F have the largest attraction to the nucleus

At has the smallest electronegativity because it has the smallest number of electrons

F has the largest electronegativity because it contains the smallest number of protons and it has the smallest radius

At has the smallest electronegativity because it has the largest radius and the largest number of protons

Dmitri Mendeleev studied the chemical characteristics of elements in the 1800s. He discovered that elements could be arranged in a table according to patterns that occur in their characteristics. Which of these processes would be very difficult now without Mendeleev's discoveries?

predicting the reactivity of elements

measuring the atomic mass of elements

identifying the color of elements

using the chemical symbols of elements

The diameter of neutral atoms generally decreases going left to right across one period on the periodic table. What change causes this decrease in diameter of atoms?

The attractive force between the protons and electrons increases.

The number of outermost electrons decreases.

The number of outermost electrons increases.

The attractive force between the protons and neutrons increases.

Electronegativity is a measure of how easy it is for an atom to attract another electron. The elements He, Ne, and Ar have the lowest electronegativity values. What do these elements have in common?

They have an outer orbital full of electrons.

They have one electron in their outer orbital.

They lose a proton which makes them negatively charged.

They have an extra electron which makes them positively charged.

Going from left to right in the periodic table, the atomic radius decreases. Which of the following explains the atomic radii trend of elements across a period?

The attraction increases between the nucleus and the outer electrons.

There is an increase in the number of electron shells.

There is a decrease in the number of electron shells.

The attraction decreases between the nucleus and the outer electrons.

Which statement best describes the trend in atomic radii observed in the periodic table?

The atomic radii increase, moving across a period to the left and down in a group.

The atomic radii increase, moving across a period to the right and down in a group.

The atomic radii increase, moving across a period to the left and up in a group.

The atomic radii increase, moving across a period to the right and up in a group.

The size of atoms can be measured using the diffraction of x-rays. Measurements of atomic size confirm that trends can be identified based on location on the periodic table of the elements. Which group of elements is listed in order of decreasing size?

boron, carbon, nitrogen, oxygen

fluorine, chlorine, bromine, iodine

phosphorus, selenium, iodine, radon

sodium, potassium, rubidium, cesium

The periodic table of the elements is useful for revealing patterns and trends in the elements. Which statement accurately describes a pattern in the size of atomic radii in the periodic table of the elements?

Atomic radii decrease from left to right across a period and increase from top to bottom in a group.

Atomic radii decrease from left to right across a period and decrease from top to bottom in a group.

Atomic radii increase from left to right across a period and increase from top to bottom in a group.

Atomic radii increase from left to right across a period and decrease from top to bottom in a group.

The chart shows the electronegativity values as the elements are arranged on the periodic table. Which statement best describes the electronegativity values of the elements shown?

Electronegativity decreases with increasing atomic number within a group.

Electronegativity decreases with increasing atomic number within a period.

Electronegativity tends to be higher in the metals than in the nonmetals.

Electronegativity tends to be lower in the gases than in the solids.

The elements chromium (Cr) and zinc (Zn) are in period four of the periodic table. Which characteristic of zinc and chromium is correct based on their positions?

Chromium has lower ionization energy than zinc.

Chromium has more valence electrons than zinc.

Zinc loses electrons more easily than chromium.

Zinc has a greater atomic radius than chromium.

The atomic radius of atoms increases in groups of elements on the periodic table of the elements. The graph shows Group 1 elements and their atomic radii. Which best describes what tends to occur in groups that results in an increase in atomic radius?

The attraction between the nucleus and electrons decreases.

The elements transition from gases to liquids to solids.

The size of the nucleus increases, forcing electrons outward.

The repulsion between electrons outside the nucleus decreases.

Which list has the classes of elements in order from most reactive to least reactive?

alkali metal; alkaline earth metal; transition metal

alkaline earth metal; alkali metal; transition metal

alkali metal; transition metal; alkaline earth metal

transition metal; alkaline earth metal; alkali metal

Alkali metals react very readily with halogens and form ionic compounds such as table salt (NaCI) and many others. Which of the following explanations most completely describes why these two families of elements reacts readily?

The alkali metals have one valence electron, and the halogens are one short of an octet.

Alkali metals are negative and halogens are positive, so they attract each other.

Alkali metals and halogens can very easily share eight valence electrons between them.

The halogens very easily donate valence electrons to the alkali metals so that all have eight.

Using the Periodic Table, predict which elements will have similar chemical properties or reactivity.

Magnesium, strontium, and barium

Rubidium, yttrium, and zirconium

Which of the following describes the properties of noble gases?

They are solid at room temperature.

Pure sodium metal reacts violently with water to produce sodium hydroxide (NaOH). The reaction occurs very quickly and liberates a great deal of heat. Which of the following best describes why this reaction occurs so quickly and so violently?

Sodium metal has only a single valence electron and has a very low electronegativity.

Hydroxide ions have valence electrons in excess of a full octet.

Hydroxide ions have very low electronegativity.

The oxygen in the water reacts with the sodium metal to produce flammable oxygen gas.

The Periodic Table

Quiz

•

Science

•

10th Grade

•

Practice Problem

•

Medium

•

NGSS

HS-PS1-1, HS-PS1-2, MS-PS1-1

Standards-aligned

Mary Toothaker

Used 15+ times

FREE Resource

Student preview

230 questions

Show all answers

MATCH QUESTION

1 min • 1 pt

Match the following

transition metal

Copper

noble gas

Oxygen

alkali earth metal

Bromine

non-metal

Calcium

halogen

Xenon

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Metals will always form

cations

anions

Answer explanation

Metals tend to lose electrons due to their low electronegativity, resulting in the formation of positively charged ions known as cations. Therefore, metals will always form cations.

CLASSIFICATION QUESTION

3 mins • 1 pt

Organize these options into the right categories

Groups:

(a) Alkali Metals

(b) Halogens

(d) Noble Gases

cobalt

platinum

argon

lithium

tantalum

bromine

potassium

francium

neon

silver

iodine

fluorine

helium

sodium

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Calcium is a(n)...

alkali metal

transition metal

alkali earth metal

halogen

Answer explanation

Calcium is classified as an alkali earth metal, which is found in Group 2 of the periodic table. This group includes elements that are known for their reactivity and the presence of two electrons in their outer shell.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Phosphorus is a(n)...

alkali metal

nonmetal

halogen

transition metal

Answer explanation

Phosphorus is classified as a nonmetal because it typically lacks the properties of metals, such as high electrical conductivity and malleability. It is found in group 15 of the periodic table, which is known for its nonmetals.

REORDER QUESTION

1 min • 1 pt

Reorder the following so that they are in order of increasing reactivity (1 is the least reactive)

sodium

potassium

cesium

francium

rubidium

REORDER QUESTION

1 min • 1 pt

Reorder the following so they are in order of increasing reactivity (1 would be the least reactive)

astatine

fluorine

iodine

bromine

chlorine

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The Periodic Table

230 questions

Match the following

Metals will always form

Metals tend to lose electrons due to their low electronegativity, resulting in the formation of positively charged ions known as cations. Therefore, metals will always form cations.

Organize these options into the right categories

Calcium is a(n)...

Calcium is classified as an alkali earth metal, which is found in Group 2 of the periodic table. This group includes elements that are known for their reactivity and the presence of two electrons in their outer shell.

Phosphorus is a(n)...

Phosphorus is classified as a nonmetal because it typically lacks the properties of metals, such as high electrical conductivity and malleability. It is found in group 15 of the periodic table, which is known for its nonmetals.

Reorder the following so that they are in order of increasing reactivity (1 is the least reactive)

Reorder the following so they are in order of increasing reactivity (1 would be the least reactive)

Match the following

Organize these options into the right categories... These elements will form a...

Manganese is a(n)...

Manganese is classified as a transition metal, which are elements found in the d-block of the periodic table. They are known for their ability to form various oxidation states and complex ions.

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