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Exam 1 Review

Total questions: 40

Worksheet time: 41mins

Name
Class
Date
1.
How many atoms are there TOTAL in:
H2SO4
a)
6
b)
5
c)
7
d)
3
2.
Number of N in (NH₄)₂CrO₄
a)
1
b)
2
c)
8
d)
16
3.

How many total atoms are in Al₂(SO₄)₃

a)
4
b)
12
c)

17

d)
24
4.
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?
a)
74.92 amu
b)
24.97 amu
c)
75.01 amu
d)
74.51 amu
5.
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?
a)
41.97 amu
b)
42.19 amu
c)
10.43 amu
d)
40.04 amu
6.

Which of these elements is in this group?

a)

Lithium

b)

Silicon

c)

Aluminum

d)

Strontium

7.
As you move across the periodic table atoms tend to get smaller because, ______________.
a)

the atoms have more mass concentrated in the nucleus

b)

the atoms have less protons in the nucleus

c)

the atoms have more electrons attracted to the nucleus.

d)

the atoms have more neutrons in the nucleus.

8.
Which of the following pairs of elements have similar properties
a)
Barium and Calcium
b)
Sodium and Magnesium
c)
Nickel and Copper
d)
Lithium and Helium 
9.
As you move across the periodic table atoms tend to get smaller because, ______________.
a)
the atoms have more mass.
b)
the atoms have less mass
c)
the atoms have more protons.
d)
the atoms have less electrons.
10.
Put the following in order of increasing ionization energy:Strontium, Aluminum, Indium
a)
Strontium, Indium, Aluminum
b)
Strontium, Aluminum, Indium
c)
Indium, Aluminum, Strontium
d)
Aluminum, Indium, Strontium
11.
Put the following in order of increasing ionization energy:Cobalt, Tungsten, Ruthenium
a)
Tungsten, Ruthenium, Cobalt
b)
Cobalt, Tungsten, Ruthenium
c)
Ruthenium, Cobalt, Tungsten
d)
Cobalt, Ruthenium, Tungsten
12.
What atom matches this electron configuration?
1s22s22p63s23p64s23d10
a)
Zinc
b)
Copper
c)
Nickel
d)
Germanium
13.
Which electron configuration belongs to Chlorine (Cl)?
a)
1s2s2p3s3p5
b)
1s2s2p3s3p6
c)
1s2s2p3s3p7
14.
What atom matches this electron configuration?
1s22s22p63s2
a)
Neon
b)
Magnesium
c)
Aluminum
d)
Potassium
15.

What atom matches this electron configuration?

[Xe] 6s24f145d9

a)

Mercury

b)

Gold

c)

Platinum

d)

Thallium

16.
Identify the Electron Configuration for Aluminum (Al)
a)
1s2s2p3s3p1
b)
1s2s2p3s3p3
c)
1s2s2p3s4p1
17.
[Ne]3s23p5 is the noble gas configuration for which element?
a)
chlorine
b)
fluorine
c)
sulfur
d)
aluminum
18.

Is the formula P2O3 an ionic or covalent compound?

a)

ionic

b)

covalent

19.

Is the formula Ba(OH)2 an ionic or covalent compound?

a)

ionic

b)

covalent

20.

What is the name for the formula SO3?

a)

sulfur trioxide

b)

sulfur oxide

c)

sulfide oxide

d)

sulfur trioxygen

21.

What is the name for the formula SiO2?

a)

silicon dioxide

b)

silicon oxide

c)

monosilicon dioxide

d)

silicon dioxygen

22.

What is the name for the formula Li3P?

a)

lithium phosphide

b)

trilithium phosphide

c)

lithium phosphorus

d)

trilithium monophosphide

23.

What is the name for the formula Mg3P2?

a)

magnesium phosphide

b)

trimagnesium diphosphide

c)

magnesium phosphorus

d)

trimagnesium diphosporus

24.

What is the correct formula for Iron (II) phosphate?

a)

Fe2PO4

b)

Fe(PO3)2

c)

Fe2(PO4)3

d)

Fe3(PO4)2

e)

Fe3PO4

25.
What is the formula for manganese(III) oxide?
a)
MgO
b)
Mg2O3
c)
MnO
d)
Mn2O3
26.
ammonium phosphate
a)
(NH4)3PO4
b)
NPO4
c)
NH4PO4
d)
NH4(PO4)3
27.

Which subatomic particle identifies an element?

a)

Proton

b)

Neutron

c)

Electron

d)

Nucleus

28.

What is the name of this element?

a)

Calcium

b)

Helium

c)

Lithium

d)

Boron

29.

Which of the elements in the picture has correct electron dot notation?

a)

1

b)

2

c)

3

d)

4

30.

Which of the elements in the picture has correct electron dot notation?

a)

1

b)

2

c)

3

d)

4

31.
Which of the following is the correct Lewis dot structure for the molecule fluorine (F2)?
a)
A
b)
B
c)
C
d)
D
32.

By replacing the element symbol, this could be a diagram of which element?

a)

Li

b)

Al

c)

C

d)

Be

33.
This could be the dot diagram of 
a)
Ne
b)
Si
c)
Al
d)
Be
34.

What determines the identity of an atom?

a)

Number of electrons

b)

Number of neutrons

c)

Number of protons

35.

What contribution did Bohr's models provide to the Atomic Theory?

a)

atoms are mostly empty space with a positive nucleus

b)

atoms are solid indivisible particles

c)

atoms are a positive mass with negative particles spread throughout

d)

atoms are composed of energy levels surrounding a nucleus

36.

How did Rutherford determine electrons were negatively charged?

a)

the ray was attracted to the positively charged plate

b)

the ray was attracted to the negatively charged plate

c)

the ray was repelled by the positively charged plate

d)

the ray was deflected back

37.
How many protons does this atom have?
a)
3
b)
6
c)
4
d)
2
38.
If an atom has 12 positively charged subatomic particles, which of the following must it also have to be considered a neutral atom?
a)
12 neutrons
b)
12 electrons
c)
12 protons
d)
24 protons and neutrons
39.

The identity of this element would be--

a)

Germanium (Ge)

b)

Gallium (Ga)

c)

Aluminum (Al)

d)

Silicon (Si)

40.

The identity of this element would be---

a)

Hydrogen (H)

b)

Lithium (Li)

c)

Beryllium (Be)

d)

Helium (He)