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If an atom contains 3 protons, 4 neutrons, and 3 electrons, its mass number is a. 3. b. 4. C. 7. d. 11.

If an atom contains 3 protons, 4 neutrons, and 3 electrons, its mass number is a. 3. b. 4. C. 7. d. 11.
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2 votes
If an atom contains 3 protons, 4 neutrons, and 3

electrons, its mass number is
a. 3.
b. 4.
C. 7.
d. 11.

User RodolfoSilva
by
8.4k points

2 Answers

4 votes
C. 7
protons + neutrons = mass number
User Ashoor
by
7.8k points
5 votes

Answer:

the answer is C 7

Step-by-step explanation:

User SOK
by
8.3k points
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