definitions

Question 1

Relative Atomic Mass

Answer 1

(Ar) is the weighted mean mass of an atom of an element compared with one-twelfth of the mass of an atom of carbon-12.

Question 2

Relative isotopic mass

Answer 2

The mass of an atom of an isotope compared with one-twlfth of the mass of an atom of carbon-12.

Question 3

Ionic bonding

Answer 3

Strong electrostatic attraction between oppositely charged ions (metal and non-metal)

Question 4

Covalent bonding

Answer 4

A shared pair of electrons between two nuclei between 2 non-metals

Question 5

Dativecovalent bonding

Answer 5

A bond where there is 1 pair of shared electrons between two atoms between to non-metals

Question 6

Isotope

Answer 6

I am is of an element with the same number of protons and electrons for a different amount of neutrons

Question 7

Molar gas volume

Answer 7

One mole of any gas has a volume of 24 litres at 25°C and one atmospheres

Question 8

Molecular Mass

Answer 8

The relative molecular mass of a substance is the weighted average of the masses of the molecules relative to 1/12 of the mass of a carbon-12 atom.

Question 9

Molecular formula

Answer 9

The actual number of atoms of each element in a compound

Question 10

Empiriacal formula

Answer 10

The simplist is whole number ratio of atoms of each element in a compound