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Identifying Elements By Their Subatomic Particles

Total questions: 30

Worksheet time: 21mins

Name
Class
Date
1.
What is the atomic mass of Neon?
a)
10
b)
20.18
c)
10.18
d)
30.18
2.
How many neutrons does a Hydrogen atom have?
a)
1
b)
2
c)
3
d)
0
3.
How many electrons does an atom of Krypton have?
a)
36
b)
83.80
c)
47.80
d)
119.80
4.
What is the atomic number for an element with 41 neutrons and a mass number of 80?
a)
39
b)
41
c)
80
d)
121
5.
What does the 6 represent above the C
a)
Symbol 
b)
Name 
c)
Mass Number 
d)
Atomic Number 
6.
Atomic mass - Atomic Number =
a)
protons
b)
neutrons
c)
electrons
d)
Average Mass
7.
An element is defined by its number of 
a)
protons
b)
electrons
c)
neutrons
d)
protons + electrons
8.
Protons and neutrons are found in the....
a)
energy levels
b)
nucleus 
c)
space 
d)
Bohr Model 
9.
Particles in an atom's nucleus that are neutral and have no charge are 
a)
megatrons. 
b)
electrons.
c)
neutrons.
d)
protons. 
10.
An atom with atomic number 6 would have how many protons?
a)
6
b)
12
c)
3
d)
cannot be determined 
11.
What is the atomic number for an element with three protons?
a)
2
b)
1
c)
3
d)
6
12.
Most of an atom's mass is found in the
a)
electrons.
b)
nucleus.
13.
A neutral atom of the element sodium has 11 protons and ____ electrons.
a)
22
b)
23
c)
8
d)
11
14.
In a stable atom the amount of electrons is electron is equal to
a)
neutrons
b)
protons
c)
atomic mass
d)
neutrons + protons
15.

The first energy ring can hold a maximum of how many electrons?

a)

2

b)

3

c)

8

d)

6

16.
How many neutrons does the an element with an atomic number of 3 and a mass of 6.9 contain?
a)
6.9
b)
4
c)
3
d)
7
17.
How many neutrons does oxygen have?
a)
16
b)
15.99
c)
8
d)
Doesn't contain any neutrons
18.
An atom with 19 protons, and 19 electrons and a mass of 39 has how many neutrons?
a)
19
b)
39
c)
20
d)
58
19.
Elements can have the same number of protons?
a)
True
b)
False
20.
a)
2
b)
8
c)
3
d)
13
21.
a)
2
b)
3
c)
5
22.

USE THE PERIODIC TABLE

How many valence electrons does carbon have?

a)

4

b)

12

c)

6

d)

14

23.

USE THE PERIODIC TABLE

How many valence electrons does sodium have?

a)

1

b)

2

c)

3

d)

4

24.

USE THE PERIODIC TABLE

Find the element that has 3 Valence Electrons and 2 energy levels.

a)

Magnesium - Mg

b)

Lithium - Li

c)

Aluminum - Al

d)

Boron - B

25.

USE THE PERIODIC TABLE

Find the element that has 5 Valence Electrons and 4 energy levels.

a)

Arsenic - As

b)

Selenium - Se

c)

Calcium - Ca

d)

Vanadium - V

26.
Elements in the same column of the periodic table always have the same # of _______ as one another.
a)
Protons
b)
Neutrons
c)
Electrons
d)
Valence Electrons
27.

Does this lewis dot structure show the octet rule?

a)

Yes

b)

No

28.

Is this the correct Lewis Dot Structure for Boron?

a)

Yes

b)

No, missing electrons

c)

No, too many electrons

d)

No, dots are in wrong place.

29.

Is this correct way to draw the Lewis Dot Structure for Carbon?

a)

Yes

b)

No, too many electrons

c)

No, not enough electrons

d)

No, dots are in wrong places

30.

What is the goal of the Lewis Dot Structure?

a)

To determine the electron position.

b)

To show the element's valence electrons & bonding capabilities.

c)

To find the atomic mass of an element.

d)

To search for the number of electrons in an individual atom.

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