Gcse Key Words

Question 0

Atom

Answer 0

The smallest part of any element

Question 1

Sublimation

Answer 1

Solid to gas

Question 2

Compound

Answer 2

Two or more elements chemically combined

Question 3

Neutron

Answer 3

• neutral subatomic particle
• found in the nucleus
• mass no - atomic no

Question 4

-ide

Answer 4

Two elements

Question 5

Filtration

Answer 5

Used to separate an insoluble solid from a liquid

Question 6

Electron

Answer 6

• negative subatomic particle
• found in shells
• number of protons

Question 7

Element

Answer 7

A single chemical that cannot be broken down into anything simpler by chemical means

Question 8

Simples distillation

Answer 8

Used to separate a solvent from a solution

Question 9

Fractional distillation

Answer 9

Used to separate mixtures containing two or more miscible liquids

Question 10

Molecule

Answer 10

Two or more atoms chemically bonded together

Question 11

Isotopes

Answer 11

Atoms that have the same number of protons but different numbers if neutrons

Question 12

Proton

Answer 12

• positive subatomic particle
• found in the nucleus
• atomic number

Question 13

Mixture

Answer 13

Elements and/or compounds together in the same space or container

Question 14

-ate

Answer 14

Three elements, one is oxygen.

Question 15

Crystallisation

Answer 15

Used to separate a solute from it’s solvent

Question 16

Ion

Answer 16

An atom or group of atoms which dad a positive or negative charge