AQA AS CHEMISTRY 7402 2 PAPER 2
ORGANIC AND PHYSICAL CHEMISTRY
ACTUAL TEST PAPER CERTIFICATION
EVALUATION RESOURCE LATEST
PRACTICE REVIEW SHEET
⩥ atom.
Answer: the smallest component of an element having the chemical
properties of the element
⩥ periodic table.
Answer: a table of the chemical elements arranged in order of atomic
number, usually in rows, so that elements with similar atomic structure
(and hence similar chemical properties) appear in vertical columns.
⩥ compound.
Answer: A substance made up of atoms of two or more different
elements joined by chemical bonds
⩥ electron.
Answer: A tiny, negatively charged particle that moves around the
nucleus of an atom.
,⩥ nucleus.
Answer: A region that is located at the centre of an atom and contains
most of the atom's mass (protons and neutrons)
⩥ proton.
Answer: A subatomic particle that has a positive charge and that is found
in the nucleus of an atom
⩥ neutron.
Answer: A subatomic particle that has no charge and that is found in the
nucleus of an atom
⩥ atomic number.
Answer: The number of protons in the nucleus of an atom
⩥ atomic mass.
Answer: The average mass of all the isotopes of an element
⩥ mixture.
Answer: A combination of two or more substances that are *not*
chemically combined
⩥ chemical reaction.
, Answer: the process by which one or more substances change to produce
one or more different substances
⩥ mass.
Answer: A measure of the amount of matter in an object
⩥ (g).
Answer: indicates that a substance in a chemical equation is a gas
⩥ (s).
Answer: indicates that a substance in a chemical equation is a solid
⩥ (aq).
Answer: indicates that a substance in a chemical equation is dissolved in
solution
⩥ (l).
Answer: indicates that a substance in a chemical equation is a liquid
⩥ chemical formula.
Answer: A combination of chemical symbols and numbers to represent a
substance
ORGANIC AND PHYSICAL CHEMISTRY
ACTUAL TEST PAPER CERTIFICATION
EVALUATION RESOURCE LATEST
PRACTICE REVIEW SHEET
⩥ atom.
Answer: the smallest component of an element having the chemical
properties of the element
⩥ periodic table.
Answer: a table of the chemical elements arranged in order of atomic
number, usually in rows, so that elements with similar atomic structure
(and hence similar chemical properties) appear in vertical columns.
⩥ compound.
Answer: A substance made up of atoms of two or more different
elements joined by chemical bonds
⩥ electron.
Answer: A tiny, negatively charged particle that moves around the
nucleus of an atom.
,⩥ nucleus.
Answer: A region that is located at the centre of an atom and contains
most of the atom's mass (protons and neutrons)
⩥ proton.
Answer: A subatomic particle that has a positive charge and that is found
in the nucleus of an atom
⩥ neutron.
Answer: A subatomic particle that has no charge and that is found in the
nucleus of an atom
⩥ atomic number.
Answer: The number of protons in the nucleus of an atom
⩥ atomic mass.
Answer: The average mass of all the isotopes of an element
⩥ mixture.
Answer: A combination of two or more substances that are *not*
chemically combined
⩥ chemical reaction.
, Answer: the process by which one or more substances change to produce
one or more different substances
⩥ mass.
Answer: A measure of the amount of matter in an object
⩥ (g).
Answer: indicates that a substance in a chemical equation is a gas
⩥ (s).
Answer: indicates that a substance in a chemical equation is a solid
⩥ (aq).
Answer: indicates that a substance in a chemical equation is dissolved in
solution
⩥ (l).
Answer: indicates that a substance in a chemical equation is a liquid
⩥ chemical formula.
Answer: A combination of chemical symbols and numbers to represent a
substance
