Question

Which of the following elements has the highest atomic mass? (3 points)

a
Helium: 2 protons and 2 neutrons

b
Nitrogen: 7 protons and 7 neutrons

c
Oxygen: 8 protons and 8 neutrons

d
Hydrogen: 1 proton and no neutrons

Answer 1

Answer:

c. Oxygen has the highest atomic mass: 16 amu.

Hope this helps.