contestada

how dose the atomic mass and atomic number compare for helium
A: helium does not have an atomic number
B: the atomic number is greater
C: the atomic mass is greater
D: the atomic mass and atomic number are equal

Respuesta :

AL2006
A ... No. Every element has an Atomic Number.

Helium's Atomic Number is 2.
It's Atomic Mass is 4.

B ... No. This isn't true for ANY element.

C ... Yes. This is true for EVERY element except Hydrogen.

D ... No. This is true for ONLY Hydrogen.
ilovebts102999

Answer: The atomic mass is greater.

Explanation: I took the quiz on K12 and got 100%