Definitions

Question 1

Ion

Answer 1

Charged particle that is formed when an atom gains or loses electrons

Question 2

Isotopes

Answer 2

Atoms that have the same number of protons but a different number of neutrons.
E.g same atomic no. And different mass no.

Question 3

Ionic bond

Answer 3

An electrostatic force of attraction between positively charged ions and negatively charged ions.

Question 4

Element

Answer 4

Made up of only one type of atom

Question 5

Half life

Answer 5

Time taken for half of the atoms in a radioisotope to turn into the new isotope/element

Question 6

Covalent bonds

Answer 6

A shared pair of electrons between two non metal atoms

Question 7

Compound

Answer 7

A compound is when two or more atoms are chemically bonded together

Question 8

Isomers

Answer 8

Compounds that have the same molecular formula but a different structural formula.

Question 9

Metallic bonding

Answer 9

The electrostatic attraction between positively charged metal ions and delocalised electrons. This holds atoms together.