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chemistry comprehension 1

Total questions: 50

Worksheet time: 1hrs 18mins

Name
Class
Date
1.

Which TWO of the following subatomic particles are inside the nucleus?

a)

protons

b)

electrons

c)

neutrons

d)

There are no subatomic particles in the nucleus of an atom.

2.
What is the number of protons that the element in this image contain?
a)
14
b)
7
c)
15
d)
18
3.

a positively-charged particle in the atoms nucleus

a)

proton

b)

neutron

c)

electron

4.

Which label correctly identifies the nucleus of the atom?

a)

A

b)

B

c)

C

d)

D

5.

What is the mass number of this atom?

a)

1

b)

3

c)

4

d)

7

6.
Sodium (Na) is found in period 
a)
3
b)
2
c)
4
d)
1
7.
Sodium (Na) is found in group 
a)
1
b)
2
c)
3
d)
4
8.

a chart showing all of the elements arranged according to their properties

a)

atomic mass

b)

proton

c)

neutron

d)

periodic table

9.

The smallest unit found in silver is

a)

element

b)

nucleus

c)

atom

d)

cell

10.

What period is this element in?

a)

1

b)

18

c)

10

d)

2

11.

What group and period is sodium (Na) located?

a)

period 1 and group 3

b)

period 3 and group 1

c)

period 2 and group 3

d)

period 3 and group 2

12.
The particles with no charge in an atom are the _______.
a)
electrons
b)
neutrons
c)
protons
d)
protons and neutrons
13.
What atom matches this electron configuration?
1s22s22p63s23p64s23d10
a)
Zinc
b)
Copper
c)
Nickel
d)
Germanium
14.
What electron configuration matches an oxygen atom?
a)
1s22s22p63s2, 3p64s23d104p5
b)
1s22s22p4
c)
1s22s22p6
d)
1s22s22p63s23p64s23d1
15.
The electron configuration of an atom is 1s22s22p6.  The number of electrons in the atom is 
a)
3
b)
6
c)
8
d)
10
16.
Which electron configuration belongs to Chlorine (Cl)?
a)
1s2 2s2 2p6 3s2 3p5
b)
1s2 2s2 2p6 3s2 3p6
c)
1s2 2s2 2p6 3s2 3p7
17.
Identify the Electron Configuration for Aluminum (Al)
a)
1s2 2s2 2p6 3s2 3p1
b)
1s2 2s2 2p6 3s2 3p3
c)
1s2 2s2 2p6 3s2 4p1
18.
Electrons occupy orbitals of lowest energy first is part of what electron configuration rule?
a)
Hund’s Rule
b)
Aufbau Principle
c)
Pauli Exclusion Principle
19.
What atom matches this electron configuration?
1s2 2s2 2p6 3s2
a)
Neon
b)
Magnesium
c)
Aluminum
d)
Potassium
20.

What is the maximum number of electrons that an S orbital can have?

a)

1 electron

b)

2 electrons

c)

3 electrons

d)

4 electrons

21.

What is this element?

1s22s22p63s23p64s23d104p6

a)

Argon

b)

Krypton

c)

Selenium

d)

Bromide

22.
How many valence electrons does Chlorine have?
a)
5
b)
2
c)
7
d)
5
23.
What is the noble gas configuration for beryllium?
a)
[He]1s2
b)
[He]2s2
c)
[Li]2s1
d)
[Li]2s2
24.
What is the noble gas configuration for boron?
a)
[He]1s22s2
b)
[He]2s22p2
c)
[He]2s22p1
d)
[Li]2s22p1
25.
What is the noble gas configuration for Sulfur?
a)
[Ar] 3p4
b)
[He] 3s2 3p4
c)
[Ne] 3s2 3p4
d)
[Na] 3s2 3p4
26.
What is the noble gas configuration for phosphorus?
a)
[Ar] 3p5
b)
[He] 3s2 3p5
c)
[Ne] 3s2 3p3
d)
[Na] 3s2 3p5
27.
What is the noble gas configuration for Neon?
a)
[Ne]
b)
[He]2s22p6
c)
[F]2p1
d)
[Ne]2s21p6
28.
[Ne]3s1 is the noble gas configuration for which element?
a)
sodium
b)
lithium
c)
fluorine
d)
aluminum
29.
[Ne]3s23p1 is the noble gas configuration for which element?
a)
scandium
b)
boron
c)
nitrogen
d)
aluminum
30.
[Ne]3s23p5 is the noble gas configuration for which element?
a)
chlorine
b)
fluorine
c)
sulfur
d)
aluminum
31.
[He]2s22p4 is the noble gas configuration for which element?
a)
oxygen
b)
sulfur
c)
phosphorus
d)
fluorine
32.

Metals will easy bond with what type of element to form an ionic bond?

a)

Metal

b)

Nonmetal

c)

Metalloid

d)

Noble Gas

33.

A chemical bond that forms when electrons are transferred between atoms is called a(n) ________ bond?

a)

Covalent

b)

Metallic

c)

Polar

d)

Ionic

34.

BaF2

a)

Barium (II) Fluoride

b)

Barium Fluorine

c)

Barium Fluoride

d)

Barium difluoride

35.
Ca+2P-3
a)
PCa
b)
P2Ca3
c)
CaP
d)
Ca3P2
36.
Ca+2P-3
a)
PCa
b)
P2Ca3
c)
CaP
d)
Ca3P2
37.
The correct chemical formula for magnesium phosphide is
a)
MgP
b)
Mg₂P₃
c)
Mg₃P₂
d)
Mg₃(PO₄)₂
38.
The name of FeCl₂ is
a)
iron chloride
b)
iron (II) chloride
c)
iron (I) chloride
d)
iron dichloride
39.

The correct name of Cu₃N₂ is

a)

copper (I) nitride

b)

copper (II) nitride

c)

copper nitride

d)

tricopper dinitride

40.
What is the formula for manganese(III) oxide?
a)
MgO
b)
Mg2O3
c)
MnO
d)
Mn2O3
41.

Name the following ionic compound: MgSO4

a)

magnesium sulfoxide

b)

magnesium sulfide

c)

magnesium sulfate

d)

magnesium oxide

42.

The chemical formula of Iron (III) bromide is

a)
FeBr
b)
Fe(III)Br
c)
FeBr₃
d)
Fe₂Br₃
43.
What is the name of N2O3
a)
Nitrogen trioxide
b)
Dinitrogen oxide
c)
Dinitrogen trioxide
d)
Nitrogen oxide
44.
What is the name of C3Cl8 ?
a)
Carbon octachloride
b)
Tricarbon octachloride
c)
Carbon trichloride
d)
Octacarbon trichloride
45.
What is the name of Br6F10 ?
a)
Bromium fluoride
b)
Hexabromine fluoride
c)
Bromium decafluoride
d)
none of the above
46.
What is the OFFICIAL name for H2O
a)
Hydrogen Oxide
b)
Oxygen Dinitride
c)
Agua
d)
Dihydrogen Monoxide
47.
BrO3
a)
bromine oxide
b)
monobromine trioxide
c)
bromine trioxide
d)
bromine (III) oxide
48.
What is the correct name for C4H6?
a)
Carbon Hexahydride
b)
Pentacarbon Pentahydride
c)
Hexacarbon Tetrahydride
d)
Tetracarbon Hexahydride
49.
What is the correct name for NO?
a)
Mononitrogen Monoxide
b)
Nitrogen Monoxide
c)
Mononitrogen Dioxide
d)
Nitrogen Oxide
50.

SeF6 is named (Pay attention to prefixes)

a)

Selenium pentafluoride

b)

Selenium hexafluoride

c)

Monoselenium hexaafluoride

d)

Selenium heptafluoride

e)

Selenium tetrafluoride

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