Mercury-202 has how many neutrons in its nucleus?

Answer 1

Mercury has the atomic number 80 so has 80 protons. Work out the neutrons by taking the protons away from the total mass. Other isotopes of mercury are mercury-196, 197, 198, 201, 202 and 204. Each will have a different number of neutrons, giving it a different mass, bat always the same number of protons. That means always the same number of electrons too, so therefore the same chemical behaviour.

Answer 2

Mercury has 80 protons. So the number of neutrons in Hg-204 is 204 - 80 = 124.

Answer 3

Mercury is a liquid metal. It has 80 protons in a atom.

Answer 4

Mercury-202 has 122 neutrons in its nucleus.

Answer 5

122