Quiz about Unit 2 - The Atom Test Review

Question 1

Experiments with cathode rays led to the discovery of the

Accepted Answer

electrons

Answer

nucleons

Answer

protons

Answer

neutrons

Question 2

Isotopes are atoms of the same element that have different

Accepted Answer

masses

Answer

# of protons

Answer

# of electrons

Answer

chemical properties

Question 3

All atoms of the same element have the same

Accepted Answer

atomic number

Answer

atomic mass

Answer

mass number

Answer

number of neutrons

Question 4

An aluminum isotope consists of 13 protons, 13 electrons, and 14 neutrons. Its mass number is

Accepted Answer

27

Answer

13

Answer

14

Answer

40

Question 5

Where are electrons of an atom found?

Accepted Answer

Electron Cloud

Answer

Nucleus

Answer

Some are in the nucleus and some in the electron cloud.

Answer

They are moving everywhere.

Question 6

Which of the following is a positively charged subatomic particle found in the nucleus of an atom?

Accepted Answer

Proton

Answer

Electron

Answer

Neutron

Answer

Quark

Question 7

What carries no charge

Accepted Answer

Neutrons

Answer

Electrons

Answer

Protons

Question 8

How many Protons are in one atom of Lithium?

Accepted Answer

3

Answer

6

Answer

7

Answer

6.941

Question 9

Which is the smallest?

Accepted Answer

electron

Answer

proton

Answer

atom

Answer

neutron

Question 10

An atom has 5 protons and 7 neutrons. What is the mass number of the atom?

Accepted Answer

12

Answer

5

Answer

7

Answer

2

Question 11

_{What is in the nucleus of an atom?}

Accepted Answer

Neutrons and protons

Answer

Protons

Answer

Protons and Electrons

Answer

Electrons and Nuetrons

Question 12

What is the atomic number of this atom shown in the Bohr model?

Accepted Answer

11

Answer

12

Answer

23

Answer

can't be determined

Question 13

Which scientist discovered the electrons?

Accepted Answer

Thomson

Answer

Dalton

Answer

Atristotle

Answer

Bohr

Question 14

Rutherford and his students did experiments that showed

Accepted Answer

nucleus

Answer

quark

Answer

proton

Answer

electron

Question 15

Bohr discovered that electrons are located in

Accepted Answer

circular orbits around the nucleus

Answer

the nucleus

Answer

inside protons

Answer

electron cloud

Question 16

Who was the first person to come up with the Atomic Theory?

Accepted Answer

John Dalton

Answer

Democritus

Answer

Ernest Rutherford

Answer

Niels Bohr

Question 17

Who developed the Quantum Mechanical Model?

Accepted Answer

Erwin Schrodinger

Answer

Joseph Thomson

Answer

James Chadwick

Answer

Ernest Rutherford

Question 18

Who discovered that the nucleus contains positively charged particles called protons?

Accepted Answer

Ernest Rutherford

Answer

James Chadwick

Answer

Democritus

Answer

Niels Bohr

Question 19

What is the name of J.J. Thomson's Model of an Atom?

Accepted Answer

Plum-Pudding Model

Answer

Jimmy Neutron Model

Answer

Solar System Model

Answer

Quantum mechanical Model

Question 20

What is an alpha particle?

Accepted Answer

It is a particle that has 2+ charge

Answer

It is a dominant particle in a subatomic world

Answer

It is a particle that has 2- charge

Answer

It is a helium atom without a charge

Question 21

Choose one of the conclusions that Ernest Rutherford made based on the experimental results of his Gold-Foil experiment

Accepted Answer

He concluded that the atom is mostly empty space

Answer

He concluded that the atom is indivisible

Answer

He concluded that the atom has neutrons

Answer

He concluded that the atom is tightly packed with subatomic particles all mixed together

Question 22

On the periodic table, Groups are

Accepted Answer

Vertical columns

Answer

Horizontal rows

Question 23

On the periodic table, Periods are

Accepted Answer

Horizontal rows

Answer

Vertical columns

Question 24

What is a valence electron?

Accepted Answer

Electrons in the outer shell

Answer

Electrons in the first energy shell

Answer

Electrons in the second energy shell

Answer

Total number of electrons

Question 25

The innermost energy level has a maximum of how many electrons?

Accepted Answer

2

Answer

1

Answer

6

Answer

8

Question 26

Name this element.

Accepted Answer

Sodium

Answer

Neon

Answer

Magnesium

Answer

Manganese

Question 27

What is the mass number of this atom?

Accepted Answer

7

Answer

1

Answer

3

Answer

4

Question 28

How many valence electrons?

Accepted Answer

4

Answer

2

Answer

3

Answer

5

Question 29

Which group includes non-reactive gasses that have a full outer electron shell?

Accepted Answer

Noble Gases

Answer

Alkai Metals

Answer

Alkaline Metals

Answer

Halogens

Question 30

How are electrons arranged in an atom?

Accepted Answer

In energy levels

Answer

In groups of five

Answer

By color

Answer

By shape

Question 31

An element with five valence electrons is

Accepted Answer

phosphorus

Answer

oxygen

Answer

beryllium

Answer

rubidium

Question 32

How many electrons are in the outer (valence) shell of Chlorine (Cl)?

Accepted Answer

7

Answer

1

Answer

3

Answer

6

Question 33

What is the name of the group that never reacts--ever ever they are stable with a full outermost ring!!!

Accepted Answer

noble gases

Answer

transition

Answer

halogens

Answer

borons

Question 34

What is this element?
1s²2s²2p⁶3s²3p⁶4s²3d¹⁰4p⁶

Accepted Answer

Krypton

Answer

Argon

Answer

Selenium

Answer

Bromide

Question 35

What electron configuration matches an oxygen atom?

Accepted Answer

1s²2s²2p⁴

Answer

1s²2s²2p⁶3s², 3p⁶4s²3d¹⁰4p⁵

Answer

1s²2s²2p⁶

Answer

1s²2s²2p⁶3s²3p⁶4s²3d¹

Question 36

Nitrogen will ____ valence electrons when forming an ionic bond.

Accepted Answer

gain 3

Answer

gain 1

Answer

lose 1

Answer

lose 3

Question 37

Which element is depicted from this orbital diagram

Accepted Answer

Chlorine

Answer

Fluorine

Answer

Neon

Answer

Argon

Question 38

This is a correct dot diagram for nitrogen (N)

Accepted Answer

true

Answer

false

Question 39

This is a correct dot diagram for fluorine (F)

Accepted Answer

true

Answer

false

Question 40

This is the correct dot diagram for sodium (Na)

Accepted Answer

true

Answer

false

Question 41

This is a correct dot diagram for oxygen (O)

Accepted Answer

false

Answer

true

Question 42

What is an ion?

Accepted Answer

A Charged Atom

Answer

A Large Atom

Answer

A Small Atom

Answer

A Cute Atom

Question 43

Why are ions formed?

Accepted Answer

Because atoms want 8 valence electrons

Answer

To make our lives difficult

Answer

Because atoms have the same number of protons and electrons

Answer

Because atoms gained neutrons

Question 44

Cations are...

Accepted Answer

Positive

Answer

Negative

Answer

Neutral

Answer

Purring

Question 45

Anions are...

Accepted Answer

Negative

Answer

Positive

Answer

Neutral

Answer

Crying

Question 46

An atom becomes _________ when it gains electrons.

Accepted Answer

Negative

Answer

Positive

Answer

Neutral

Answer

Invinsible

Question 47

An atom becomes _______ when it loses electrons.

Accepted Answer

Positive

Answer

Negative

Answer

Neutral

Answer

Invinsible

Question 48

A Radium atom wants...

Accepted Answer

Two less electrons

Answer

One more electron

Answer

One less electron

Answer

Two more electrons

Question 49

What is a Rubidium ion's symbol?

Accepted Answer

Rb+

Answer

Rb-

Answer

Rb-2

Answer

Rb+2

Question 50

Which particles change the charge in atoms when ions are formed?

Accepted Answer

Electrons

Answer

Protons

Answer

Neutrons

Answer

Kittens

Unit 2 - The Atom Test Review

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