12. The number of protons and neutrons tells us:

| a. The principle quantum

number

b. The reactivity of the element e

C. The atomic mass

d. The atomic number

. Both a and c

Question

Chemistry

Carl Wheeler

7 November, 22:47

12. The number of protons and neutrons tells us:

| a. The principle quantum

number

b. The reactivity of the element e

C. The atomic mass

d. The atomic number

. Both a and c

+4

Answers (1)

Know the Answer?

Viviana Castro · Answer 1

c. The atomic mass

Explanation:

The atomic mass is the total number of protons and neutrons which are present in the atomic nucleus of an element. All atomic nucleus have protons and neutrons except by exception of common form of hydrogen H+.

Mass number or atomic mass = proton number + neutrons number

12. The number of protons and neutrons tells us:| a. The principle quantumnumberb. The reactivity of the element eC. The atomic massd. The atomic number. Both a and c

12. The number of protons and neutrons tells us:

| a. The principle quantum

number

b. The reactivity of the element e

C. The atomic mass

d. The atomic number

. Both a and c