3/25/25, 5:41 PM
*GCSE CHEMISTRY (AQA) EXAM QUESTIONS AND ANSWERS WITH
COMPLETE SOLUTIONS VERIFIED LATEST UPDATE
Terms in this set (308)
A pure substance made of only one kind of atom
element
the smallest component of an element having the
chemical properties of the element
atom
a table of the chemical elements arranged in order
of atomic number, usually in rows, so that elements
periodic table
with similar atomic structure (and hence similar
chemical properties) appear in vertical columns.
A substance made up of atoms of two or more
different elements joined by chemical bonds
compound
A tiny, negatively charged particle that moves
around the nucleus of an atom.
electron
A region that is located at the centre of an atom and contains most of the atom's
nucleus
mass (protons and neutrons)
A subatomic particle that has a positive charge
and that is found in the nucleus of an atom
proton
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, 3/25/25, 5:41 PM
A subatomic particle that has no charge and that is
found in the nucleus of an atom
neutron
The number of protons in the nucleus of an atom
atomic number
The average mass of all the isotopes of an element
atomic mass
A combination of two or more substances that are
not chemically combined
mixture
the process by which one or more substances
change to produce one or more different
chemical reaction
substances
A measure of the amount of matter in an object
mass
(g) indicates that a substance in a chemical equation is a gas
(s) indicates that a substance in a chemical equation is a solid
(aq) indicates that a substance in a chemical equation is dissolved in solution
(l) indicates that a substance in a chemical equation is a liquid
A combination of chemical symbols and numbers
to represent a substance
chemical formula
A representation of a chemical reaction that uses
symbols to show the relationship between the
chemical equation
reactants and the products
A technique that is used to separate the
components of a mixture based on the tendency
chromatography
of each component to travel or be drawn across
the surface of another material.
A process that separates materials based on the
size of their particles.
filtration
A process used to separate dissolved solids from a
liquid, which is boiled to produce a vapor that is
distillation
then condensed into a liquid
2/8
*GCSE CHEMISTRY (AQA) EXAM QUESTIONS AND ANSWERS WITH
COMPLETE SOLUTIONS VERIFIED LATEST UPDATE
Terms in this set (308)
A pure substance made of only one kind of atom
element
the smallest component of an element having the
chemical properties of the element
atom
a table of the chemical elements arranged in order
of atomic number, usually in rows, so that elements
periodic table
with similar atomic structure (and hence similar
chemical properties) appear in vertical columns.
A substance made up of atoms of two or more
different elements joined by chemical bonds
compound
A tiny, negatively charged particle that moves
around the nucleus of an atom.
electron
A region that is located at the centre of an atom and contains most of the atom's
nucleus
mass (protons and neutrons)
A subatomic particle that has a positive charge
and that is found in the nucleus of an atom
proton
1/8
, 3/25/25, 5:41 PM
A subatomic particle that has no charge and that is
found in the nucleus of an atom
neutron
The number of protons in the nucleus of an atom
atomic number
The average mass of all the isotopes of an element
atomic mass
A combination of two or more substances that are
not chemically combined
mixture
the process by which one or more substances
change to produce one or more different
chemical reaction
substances
A measure of the amount of matter in an object
mass
(g) indicates that a substance in a chemical equation is a gas
(s) indicates that a substance in a chemical equation is a solid
(aq) indicates that a substance in a chemical equation is dissolved in solution
(l) indicates that a substance in a chemical equation is a liquid
A combination of chemical symbols and numbers
to represent a substance
chemical formula
A representation of a chemical reaction that uses
symbols to show the relationship between the
chemical equation
reactants and the products
A technique that is used to separate the
components of a mixture based on the tendency
chromatography
of each component to travel or be drawn across
the surface of another material.
A process that separates materials based on the
size of their particles.
filtration
A process used to separate dissolved solids from a
liquid, which is boiled to produce a vapor that is
distillation
then condensed into a liquid
2/8
