Chemistry Paper 1 Keywords

Question	Answer
Atom	the smallest quantity of an element that can take part in a chemical reaction, consisting of a positively charged nucleus made up of protons and neutrons, surrounded by negatively charged electrons
Element	a substance made of only one type of atom
Compound	a substance containing atoms of two or more elements, which are chemically combined in fixed proportions
Equation	a scientific statement that uses chemical names or symbols to sum up what happens in a chemical reaction
Reactants	the substances that react together in a chemical reaction
Products	the substances produced in a chemical reaction
Mixture	a combination of two or more elements, which are not chemically combined together
Filtration	separation techniques used to separate insoluble solids from solids
Crystallisation	technique used to obtain a soluble solid from a reaction
Simple Distillation	technique used to separate a substance from a mixture due to a difference in boiling points
Fractional Distillation	a separation technique used to separate mixtures which contain components with similar boiling points
Chromatography	a separation technique used to separate the coloured components of a mixture
Electron	a sub`atomic particle which has a negative charge , small relative atomic mass and which orbits the nucleus
Proton	a sub`atomic particle
Neutron	h
Atomic Number	h
Mass Number	j
Isotope	g
Ion	u
Electron Configuration

Resource summary

	Created by Paige Louise almost 6 years ago