Quiz about CH. 2 Properties of Atoms and the Periodic Table

Question 1

Which is the subatomic particle with a positive charge?

Accepted Answer

proton

Answer

electron

Answer

neutron

Answer

atom

Question 2

An atom's nucleus has a ________ charge.

Accepted Answer

positive

Answer

nedative

Answer

neutral

Question 3

Which subatomic particle(s) is found in the nucleus?

Accepted Answer

proton

Accepted Answer

neutron

Answer

electron

Question 4

Why can't atoms touch?

Accepted Answer

The negative electrons repel each other.

Answer

They don't like each other.

Answer

The negative electrons attract each other.

Answer

The positive electrons attract each other.

Answer

The positive electrons repel each other.

Question 5

What do like charges do?

Accepted Answer

Repel each other

Answer

Attract each other

Question 6

Which atomic model is a solid sphere?

Accepted Answer

Democritus

Answer

Thomson

Answer

Rutherford

Answer

Bohr

Answer

Electron Cloud

Question 7

Which atomic model shows negatively charged electrons embedded in a sphere like chocolate chips in a cookie?

Accepted Answer

Thomson

Answer

Democritus

Answer

Rutherford

Answer

Bohr

Answer

Electron Cloud

Question 8

Atoms are neutral because the number of protons is equal to the number of ______.

Accepted Answer

electrons

Answer

neutrons

Answer

protons

Answer

charges

Question 9

Which model is this?

Accepted Answer

Electron Cloud

Answer

Democritus

Answer

Thomson

Answer

Rutherford

Answer

Bohr

Question 10

During his gold foil experiment, Ernest Rutherford observed that most of the particles when they hit the gold foil did what?

Accepted Answer

Most of the particles flew straight through the gold foil

Answer

Most of the particles bounced backwards

Answer

Most of the particles were deflected off to the sides

Answer

Most of the particles got stuck in the foil like flies in a spider web

Question 11

During Ernest Rutherford's gold foil experiment, what was it that Rutherford learned?

Accepted Answer

The nucleus only takes up 0.01% of the space in the atom

Answer

Atoms are very dense and alpha particles cannot fly through them

Answer

The nucleus takes up most of the space in the atom

Answer

The nucleus is the lightest part of the atom

Question 12

Can you find an element's mass number on the periodic table?

Accepted Answer

No

Answer

Yes

Question 13

Which subatomic particle has a negative charge?

Accepted Answer

Electron

Answer

Proton

Answer

Neutron

Answer

Quark

Question 14

What element is this model showing?

Accepted Answer

Neon

Answer

Lithium

Answer

Boron

Answer

Carbon

Question 15

What is the element symbol for boron?

Accepted Answer

B

Answer

Bo

Answer

Bn

Answer

W

Question 16

Different isotopes of a particular element contain the same number of ________.

Accepted Answer

protons

Answer

neutrons

Answer

protons & neutrons

Answer

mass

Question 17

In the symbol ¹⁴_x C, x is equal to --

Accepted Answer

6

Answer

7

Answer

13

Answer

12

Question 18

24.1% of all the isotopes of a an element have a mass of 75.23 amu, 48.7% have a mass of 74.61 amu, and 27.2% have a mass of 75.20 amu.
What is the average mass of this element?

Accepted Answer

74.92 amu

Answer

24.97 amu

Answer

75.01 amu

Answer

74.51 amu

Question 19

4.35% of all X atoms have a mass of 39.946 amu. 83.79% have a mass of 41.941 amu, 9.50% have a mass of 42.941 amu, and 2.36% have a mass of 43.939 amu. What is the average atomic mass of atom X?

Accepted Answer

41.97 amu

Answer

42.19 amu

Answer

10.43 amu

Answer

40.04 amu

Question 20

An isotope has three forms.  30% have a mass of 4 amu, 20% have a mass of 5 amu and 50% have a mass of 3 amu.  Average atomic mass will be closest to

Accepted Answer

4 amu

Answer

2 amu

Answer

3 amu

Answer

5 amu

Question 21

Which of the following could have 82 neutrons?

Accepted Answer

Ba-138

Answer

W-182

Answer

Ta-181

Answer

Cs-132

Question 22

What is the net charge of an atom that has 5 protons, 6 neutrons and 3 electrons?

Accepted Answer

+2

Answer

-3

Answer

-2

Answer

+5

Question 23

How many neutrons does the isotope of lithium have?

Accepted Answer

5

Answer

8

Answer

3

Answer

4

Question 24

Rutherford realized that the atomic nucleus was positively charged because

Accepted Answer

it deflected alpha particles.

Answer

it attracted alpha particles.

Answer

it had no effect on alpha particles.

Answer

it produced alpha particles.

Question 25

Whose model suggested that negative particles were mixed in with positively charged material - like seeds in a watermelon?

Accepted Answer

J.J. Thomson

Answer

Ernest Rutherford

Answer

Niels Bohr

Answer

Albert Einstein

Question 26

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 27

Name this element.

Accepted Answer

Sodium

Answer

Neon

Answer

Magnesium

Answer

Manganese

Question 28

What is the atomic number of this atom?

Accepted Answer

2

Answer

4

Answer

6

Answer

8

Question 29

Where is most of the mass of an atom found?

Accepted Answer

the nucleus

Answer

the electron cloud

CH. 2 Properties of Atoms and the Periodic Table

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