An atom is determined to contain 12 protons, 10 electrons, and 12 neutrons. What are the mass number and charge of this atom or ion?

Select one:

a. mass number: 24, charge: + 2

b. mass number: 22, charge: neutral

c. mass number: 34, charge: - 2

d. mass number: 34, charge: + 2

Question

Angel Shannon

Chemistry

23 October, 21:49

An atom is determined to contain 12 protons, 10 electrons, and 12 neutrons. What are the mass number and charge of this atom or ion?

Select one:

a. mass number: 24, charge: + 2

b. mass number: 22, charge: neutral

c. mass number: 34, charge: - 2

d. mass number: 34, charge: + 2

+3

Answers (1)

Know the Answer?

Lauren Bridges · Answer 1

Mass number = atomic number + number of neutrons.

A=Z+N

Z=number of protons=12

N=12

A=12+12=24

If, we have 12 protons and 10 electrons, the charge of this ion is + 2

Therefore: mass number:24; charge: + 2

Answer: a. mass number: 24; charge: + 2

An atom is determined to contain 12 protons, 10 electrons, and 12 neutrons. What are the mass number and charge of this atom or ion?Select one:a. mass number: 24, charge: + 2b. mass number: 22, charge: neutralc. mass number: 34, charge: - 2d. mass number: 34, charge: + 2

An atom is determined to contain 12 protons, 10 electrons, and 12 neutrons. What are the mass number and charge of this atom or ion?

Select one:

a. mass number: 24, charge: + 2

b. mass number: 22, charge: neutral

c. mass number: 34, charge: - 2

d. mass number: 34, charge: + 2