Definitions

Question 1

Define Isotopes

Answer 1

Atoms of an element with the same number of protons (and electrons) but a different number of neutrons.

Question 2

Define Relative Isotopic Mass

Answer 2

The mass of an atom of an isotope of an element compared with 1/12th of the mass of a 12Carbon atom.

Question 3

Define Relative Atomic Mass (Ar)

Answer 3

The weighted mean mass of an atom of an element compared with 1/12th of a 12Carbon atom.

Question 4

Define Molecular Formula

Answer 4

The actual number of atoms of each element in a compound.

Question 5

Define Empirical Formula

Answer 5

The simplest whole number ratio of atoms of each element in a compound.

Question 6

Define Ionic Bonding

Answer 6

Strong electrostatic attraction between oppositely charged ions, between a metal and a non-metal.

Question 7

Define Covalent Bonding

Answer 7

A shared pair of electrons between two nuclei, between two non-metals.