Calculating Mass and Neutrons - Part 2
Quiz by Jennifer Davis
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- Q1
An atom of the element gallium (Ga) has 31 protons and 39 neutrons. What is the mass of gallium?
8 amu
31 amu
39 amu
70 amu
300s8.5a - Q2
An aluminum atom has an atomic number of 13 and a mass number of 27. How many protons are there in an atom of aluminum?
40
13
14
27
300s8.5a - Q3
An aluminum atom has an atomic number of 13 and a mass number of 27. How many neutrons are there in an atom of aluminum?
13
40
14
27
300s8.5a - Q4
An aluminum atom has an atomic number of 13 and a mass number of 27. How many electrons are there in an atom of aluminum?
14
27
13
40
300s8.5a - Q5
An atom of calcium has a mass number of 42 and an atomic number of 20. How many neutrons are there in its nucleus?
62
20
22
42
300s8.5a - Q6
An atom of chlorine has a mass number of 40. What is the total number of neutrons in its nucleus?
17
35
40
23
300s8.5a - Q7
Which subatomic particles make up the nucleus?
protons and neutrons
electrons only
protons and electrons
neutrons and electrons
300s8.5a - Q8
An atom of gold has 79 protons, 79 electrons, and 119 neutrons. What is the mass of the atom?
79 amu
39 amu
119 amu
198 amu
300s8.5a - Q9
Which of the following have the least mass?
nucleus
neutrons
electrons
protons
300s8.5a - Q10
An atom of Vanadium has an atomic number of 23 and a mass number of 52. How many protons does it have?
52
75
29
23
300s8.5a - Q11
What determines the identity of an atom?
neutrons
mass number
electrons
protons
300s8.5a - Q12
A certain atom has a nucleus containing 4 protons, 5 neutrons, and 4 electrons orbiting the nucleus. This atom describes which element?
Beryllium
Chlorine
Oxygen
Fluorine
300s8.5a - Q13
An atom of Cobalt (Co) has a mass of 60 amu. How many neutrons would be found in this atom?
33
27
60
32
300s8.5a - Q14
A neutral atom of nickel has an atomic number of 28 and a mass number of 57 amu. How many electrons are in this atom of nickel?
28
57
29
85
300s8.5a - Q15
What is the mass number of the atom below?
6 amu
21 amu
7 amu
14 amu
300s8.5a
