Key Words Quiz Flashcards
1
Q
Atomic mass unit
A
1/12th of the mass of one atom of carbon-12
2
Q
Atomic number
A
Number of protons in the nucleus
3
Q
Mass number
A
Number of protons add the number of neutrons
4
Q
Isotope
A
Atoms of the same element with a different number of neutrons and different masses
5
Q
Relative isotopic mass
A
The mass of an isotope relative to 1/12th of the mass of an atom of carbon-12
6
Q
Relative molecular mass
A
Compares the mass of a molecule with the mass of an atom of carbon-12
7
Q
Relative formula mass
A
Compares the mass of a formula unit with the mass of an atom of carbon-12
