A full set of notes for spec points 4.1 Atomic structure and the periodic table:
4.1.1.1 Atoms, elements and compounds
4.1.1.2 Mixtures
4.1.1.3 The development of the model of the atom (common content with physics)
4.1.1.4 Relative electrical charges of
4.1.1.5 Size and mass of atoms
4.1.1.6...
Atomic structure and periodic table with bonding and structure
May 2, 2022
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2021/2022
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Subjects
introduction
structure
bonding
structure
and the properties of
41
42
42 bonding
and the properties of matter
41 atomic structure and the periodic table
atomic structure and the periodic table
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AQA GCSE (9-1) CHEMISTRY- CHEMICAL CHANGES AND ELECTROLYSIS
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Chemistry Revision Notes – term 1
This file will contain:
4.1 Atomic structure and the periodic table
4.1.1.1 Atoms, elements and compounds
4.1.1.2 Mixtures
4.1.1.3 The development of the model of the atom (common content with
physics)
4.1.1.4 Relati ve electrical charges of
4.1.1.5 Size and mass of atoms
4.1.1.6 Relati ve atomic mass
4.1.1.7 Electronic structure
4.2 Bonding, structure, and the properti es of matt er
4.1.2.1 The periodic table
4.1.2.2 Development of the periodic table
4.1.2.3 Metals and non-metals
4.1.2.4 Group 0
4.1.2.5 Group 1
4.1.2.6 Group 7
4.2.1.1 Chemical bonds
4.2.1.2 Ionic bonding
4.2.1.3 Ionic compounds
4.2.1.4 Covalent bonding
4.2.1.5 Metallic bonding
, 4.1 Atomic structure and the periodic table
4.1.1 A simple model of the atom, symbols, relative atomic mass,
electronic charge and isotopes
4.1.1.1 Atoms, elements and compounds
All substances are made out of atoms
An atom is the smallest part of an element that can exist, it has its own characteristics and
properties
Atoms are made up of protons, neutrons and electrons
If the atoms are the same, then a molecule of the element is formed
Most elements exist as molecules
Molecule is formed when 2 or more substances are covalently bonded
An element is a substance made only of 1 type of atoms
Elements are shown on the periodic table, there are about 100 of them
All atoms are the same in the structure of an element
Compound is two or more different atoms and/or elements chemically bonded together
Compounds mixtures
fixed composition (ratio of elements always Have no fixed composition
stays the same)
Chemical reactions need to be used to Substances which make up a mixture can be
separate the elements that make up the (relatively) easily separated by physical
compound separation techniques
There are chemical bonds between atoms of There are no chemical bonds between atoms
different elements of compounds
4.1.1.2 Mixtures
Chemical and physical properties of a compound is different to its
original atoms/element
A mixture consists of two or more elements and/or
compounds not chemically combined
together
A mixture has a mix of properties of substances
it’s made from
Physical processes are used to
separate mixtures:
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