How many protons and neutrons in N-15?

Answer 1

The number after the "N", 15, is the mass number. The mass number is the sum of the number of protons and the number of neutrons. So, if you find a Periodic Table, you can find the atomic number, which is the same as the number of protons. Because the atomic number of nitrogen is 7, it has 7 protons. Then we take the mass number (protons + neutrons) and subtract the number of protons to find the number of neutrons. 15 - 7 = 8 neutrons in 15N.

Answer 2

The 15 in 15N is the mass number. The mass number is the sum of the number of neutrons and protons. If we know nitrogen has 7 protons, then 15N must have 8 neutrons.

Answer 3

Nitrogen-15 has 7 electrons and protons and 8 neutrons.

Answer 4

The nucleus of any nitrogen atom or single element nitrogen ion contains 7 protons; 7 is the atomic number of nitrogen.

Answer 5

15N has 8 electrons

Answer 6

Nitrogen-15 has 7 protons and 8 neutrons.

Answer 7

7

Answer 8

8