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Chapter 4 "Test"

Total questions: 35

Worksheet time: 37mins

Name
Class
Date
1.

What is the molar mass of sodium (Na)?

a)

11 g/mol

b)

23 g/mol

c)

1 g/mol

d)

3 g/mol

2.

What is the mass of one mole of aluminum (Al)?

a)

27 g

b)

13 g

c)

54 g

d)

14 g

3.

What is the molar mass of table salt (NaCl)?

a)

805 g/mol

b)

35 g/mol

c)

23 g/mol

d)

58 g/mol

4.

What is the molar mass of CO2?

a)

22

b)

16

c)

32

d)

44

5.
Which would have more atoms?
a)
1 mole of Li
b)
1 mole of Au
c)
1 mole of Si
d)
None, all are equal
6.

What is the mass of one mole of Helium?

a)

4 g

b)

2 g

c)

8 g

d)

There is no way to know

7.

All matter is made of what...

a)

energy

b)

atoms

c)

electrons

d)

compounds

8.

The positive particles of an atom are

a)

electrons

b)

positrons

c)

neutrons

d)

protons

9.

The central region of an atom where its neutrons and protons are is its

a)

nucleus

b)

electron cloud

c)

core

d)

center

10.

Particles in an atom that are neutral and have no charge are

a)

negatrons

b)

electrons

c)

neutrons

d)

protons

11.
A particle that moves around the nucleus is a(n)...
a)
Proton
b)
Neutron
c)
Electron
d)
Quark
12.

What does the 1.00794 stand for?

a)

Hydrogen

b)

atomic number

c)

atomic mass

d)

atomic explosion

13.

In the modern periodic table, elements are arranged by:

a)

atomic mass

b)

atomic number

c)

valence electrons

d)

number of isotopes

14.

An atom with atomic number 6 would have how many protons

a)

6

b)

12

c)

3

d)

cannot be determined

15.

What is the number of protons that the element in this image contain?

a)

14

b)

7

c)

15

d)

18

16.
What is the atomic mass of "F"
a)
9
b)
18
c)
17
d)
19
17.

How many neutrons are in the atom "K"?

a)

7

b)

2

c)

39

d)

20

18.
What are the 3 particles that make-up the atom?
a)
protons, neutrons, and isotopes
b)
neutrons, isotopes, and electrons
c)
positives, negatives, and electrons
d)
protons, neutrons, and electrons
19.

What type of charge does a proton have?

a)

negative

b)

postive

c)

no charge/neutral

20.

What type of charge does an electron have?

a)

positive

b)

no charge/neutral

c)

negative

21.

What two sub-atomic particles belong in the nucleus of an atom?

a)

electrons and protons

b)

protons and neutrons

c)

electrons and neutrons

22.

The mass number of an atom =

a)

protons + neutrons

b)

protons - neutrons

c)

electrons - neutrons

d)

neutrons + electrons

23.
What is the name of this element?
a)
Helium
b)
Hydrogen
c)
Argon
d)
Silver
24.

What element is represented in this Bohr Model?

a)

Carbon

b)

Hydrogen

c)

Aluminum

d)

Lithium

25.
What is the name of this element?
a)
Lithium
b)
Boron
c)
Carbon
d)
Neon
26.
Isotopes are elements with a different amount of
a)
protons
b)
neutrons
c)
electrons
d)
atoms
27.
an element will always have the same number of 
a)
neutrons
b)
protons
c)
isotopes
d)
atoms
28.

How many electrons can fit on the 1st energy level (orbital) for any Bohr Model?

a)

2

b)

6

c)

8

d)

10

29.

Which element does this Bohr model represent?

a)

Aluminum

b)

Silicon

c)

Magnesium

d)

Cobalt

30.

What element does this Bohr model represent?

a)

Chromium

b)

Magnesium

c)

Carbon

d)

Krypton

31.
What do these isotopes of carbon all have in common?
a)
neutrons & mass number
b)
atomic number and neutrons
c)
atomic number and electrons
d)
protons, atomic number, and mass number
32.
36.0 g of Be contains how many moles?
a)
0.25 mol
b)
4.0 mol
c)
45 mol
d)
320 mol
33.
How many moles are in 22 g of argon? 
a)
880 moles
b)
0.55 moles
c)
1.81 moles
d)
5 moles
34.
In chemistry, a "mole" is:
a)
The mass of an atom
b)
a large number used to count particles
c)
based on the volume of a substance
35.

The number 6.02 x 1023 is called...

a)

Obama's number

b)

Bohr's number

c)

Ghandi's number

d)

Avogadro's number

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