Key Definitions Flashcards
1
Q
What is the definition of relative atomic mass?
A
The weighted mean mass of an atom of an element, compared with 1/12 of the mass of an atom of carbon 12
2
Q
What is the definition of an isotope?
A
Atoms of the same element with the same number of protons, but a different number of neutrons and a different mass
3
Q
What is the definition of relative isotopic mass?
A
The mass of one isotope of an element relative to the mass of one atom of carbon 12
4
Q
What is the definition of a mole?
A
One mole is the amount of substance that contains the same number of particles, as there are atoms in 12 g of carbon 12
5
Q
What is the definition for Avagardros constant?
A
The number of atoms in 12 g of carbon 12
6
Q
What is the empirical formula for C2H4
A
CH2
