The atomic number is the number of protons in the nucleus of an element. The mass number is the sum of protons and neutrons in the nucleus of an atom. Use the element symbol below to answer the following questions.



Column A
1.
The atomic number of Cm:
The atomic number of Cm
2.
The mass number of Cm:
The mass number of Cm
3.
The number of protons in the nucleus of Cm:
The number of protons in the nucleus of Cm
4.
The number of neutrons in the nucleus of Cm (Subtract: mass number - atomic number):
The number of neutrons in the nucleus of Cm (Subtract: mass number - atomic number)
Column B
a.96
b.151
c.343
d.247

Column A

1. The atomic number of Cm: a. 96
2. The mass number of Cm: b. 151
3. The number of protons in the nucleus of Cm: a. 96
4. The number of neutrons in the nucleus of Cm (Subtract: mass number - atomic number): d. 55

Therefore, the answers are:

1. a. 96
2. b. 151
3. a. 96
4. d. 55