3.1k views
1 vote
Which element above has 8 protons in its nucleus?

a. oxygen
b. carbon
c. phosphorus
d. sulfur

User Undo
by
8.5k points

2 Answers

6 votes
Oxygen, you cannot judge an elements number of protons by its atomic mass, but by the atomic number. the atomic number is 8, thus 8 protons.
User Mickeal
by
7.7k points
4 votes
A. Oxygen. Oxygen has an atomic mass of 16. The atomic mass of an atom is the combined weight o the protons and neutrons. Since Oxygen's atomic mass is 16, it has 8 protons and 8 neutrons.
User Alexander Lucas
by
8.5k points

No related questions found