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HN Atoms Unit Review

Total questions: 35

Worksheet time: 35mins

Name
Class
Date
1.
If the number of protons equal the number of _____, the atom will have no charge
a)
protons
b)
neutrons
c)
electrons
d)
nucleus
2.
What is the atomic number?
a)
the number of protons
b)
the number of protons and neutrons
c)
the number of neutrons
d)
the number of protons and electrons
3.
What is the mass number?
a)
the number of protons
b)
the number of protons and neutrons
c)
the number of neutrons
d)
the number of protons and electrons
4.
An atom with an unequal number of protons and electrons is said to have (a) ___.
a)
no charge
b)
balance
c)
charge
d)
unbalance
5.
Ions are: 
a)
atoms with a positive or negative charge
b)
atoms with no charge
c)
atoms with ONLY a positive charge
d)
atoms with ONLY a negative charge
6.
Two atoms of the same element but with different mass numbers are called________
a)
electrons
b)
isotopes
c)
variables
d)
electron cloud
7.
How many neutrons does the isotope of lithium have?
a)
8
b)
3
c)
4
d)
5
8.

How many neutrons does this bromine atom have?

a)

35

b)

45

c)

80

9.

How many electrons are in an atom with atomic number 34 mass number of 74, and a charge of -2?

a)

34

b)

36

c)

2

d)

40

10.

Remember to use your Periodic Table of Elements to help you identify which Bohr Model is pictured...

a)

carbon

b)

magnesium

c)

neon

d)

zinc

11.

Which Bohr model represents Neon?

a)
b)
c)
d)
12.

How many electrons can go in the Second energy level?

a)

2

b)

8

c)

18

d)

32

13.

What is the name of group number 1?

a)

halogens

b)

noble gases

c)

alkali metals

d)

alkaline earth metals

14.

What is the name of group number 2?

a)

transition metals

b)

halogens

c)

metaloids

d)

alkaline earth metals

15.

What group number are the halogens found?

a)

18 (8A)

b)

1

c)

2

d)

17 (7A)

16.

Vertical columns on the periodic table are called ____?

a)

Rows

b)

Families

c)

Periods

d)

Groups

17.
The atoms along the staircase are called 
a)
metals
b)
nonmetals
c)
metalloids
d)
noble gases
18.
Name groups 3 - 12 on the periodic table.
a)
noble gases
b)
halogens
c)
metalloids
d)
transition metals
19.
Where are the nonmetals located on the periodic table?
a)
top left corner
b)
bottom left corner
c)
top right corner
d)
bottom left corner
20.
How many valence electrons are in an atom of Se?
a)
2
b)
8
c)
6
d)
5
21.
How many valence electrons are in an atom of Ba?
a)
2
b)
8
c)
4
d)
1
22.
How many valence electrons are in an atom of Ar?
a)
2
b)
8
c)
4
d)
1
23.
How many valence electrons are in an atom of K?
a)
3
b)
8
c)
4
d)
1
24.
How many valence electrons are in an atom of Sn?
a)
3
b)
8
c)
4
d)
1
25.

This could be the dot diagram of

a)

Mg

b)

Cl

c)

C

d)

O

26.

Which of the following is a correct electron dot structure?

a)
b)
c)
d)
27.

Which of the following is the correct electron dot structure for nitrogen?

a)
b)
c)
d)
28.

This orbital diagram represents:

a)

Carbon

b)

Boron

c)

Nitrogen

d)

Oxygen

29.

This orbital diagram represents

a)

Nitrogen

b)

Oxygen

c)

Carbon

d)

Neon

30.

What is incorrect about this orbital diagram?

a)

Both arrows in the 2p box should be pointing up

b)

There are too many electrons in the 1s orbital

c)

In the 2p boxes, there should only be 1 electron in the first 2p box and one in the 2nd 2p box

d)

All the arrows should be pointing up

31.
What atom matches this electron configuration?
1s2 2s2 2p6 3s2
a)
Neon
b)
Magnesium
c)
Aluminum
d)
Potassium
32.
Which is the electron configuration for an oxygen atom?
a)
1s22s22p63s23p64s2
b)
1s22s22p4
c)
1s22s22p6
d)
1s22s22p63s23p6
33.
What is this element? 
1s22s22p63s23p6
4s23d104p6
a)
Argon
b)
Krypton
c)
Selenium
d)
Bromide
34.
What atom matches this electron configuration?
[Xe] 6s2 4f14 5d9
a)
Mercury
b)
Gold
c)
Platinum
d)
Thallium
35.
What is the shorthand electron configuration for Sulfur atom?
a)
[Ar] 3p4
b)
[He] 3s23p4
c)
[Ne] 3s23p4
d)
[Na] 3s23p3

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