Atomic Structure, Bonding & Properties Glossary Word (aq)
Meaning Dissolved in water.
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(g)
Gaseous state
(l)
Liquid
(s)
Solid state.
Alkali metals
Metals in group 1. Very reactive metals.
The smallest particle of an element that can exist on its own. The mass of one proton or one neutron (shorthand amu). The number of protons in the nucleus of an atom. The temperature at which a liquid substance becomes a gas. Force of attraction between particles which holds them together.
Atom Atomic mass unit Atomic number Boiling point Bond Chemical Property Compound Conductor Covalent bond Covalent network Delocalised electrons Diatomic Electricity
The way a chemical reacts. Substance made up of two or more different elements that are chemically joined together. A material which will allow heat/electricity to flow through it. A shared pair of electrons between two nonmetal atoms. A massive structure made of lots of nonmetal atoms held together by strong covalent bonds. Electrons which are free to move as they do not belong to any one atom. Two atoms joined together in a molecule. A flow of charged particles. Either electrons in a (metal) wire or ions in a solution or melt.
Atomic Structure, Bonding & Properties Glossary Word Electrode Electron
Electron arrangement Electron shells
Element Formula Graphite
Group Halogens Insulator Ionic bond
Ionic lattice
Ions
Mass number
Meaning A solid rod which conducts electricity. Can be made of graphite or a metal. Sub atomic particle with a negative charge and negligible mass. Found outside the nucleus in electron shells. The way electrons fill electron shells. Area where electrons are orbiting.
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A substance made up of only one type of atom. The symbols and numbers that represent the ratio of different atoms/ions in a substance. A covalent network made of carbon atoms joined to three others only which creates hexagonal planes. A vertical column in the periodic table containing elements with similar chemical properties and the same number of outer shell electrons. Reactive non metals elements in group 7.
A substance which does not allow the passage of electricity through it. When electrons are transferred from a metal atom to a non-metal atom and the resulting two oppositely charged ions are attracted to each other. A massive three dimensional structure where the ions are held firmly in place by strong ionic bonds. Atoms which have lost or gained electron(s) to become either positively or negatively charged. The sum of protons and neutrons in the nucleus of an atom.
Atomic Structure, Bonding & Properties Glossary Word Melting point Metallic bonding Molecule Neutral Neutron Noble gas
Nucleus Outer electrons Period
Periodic table Physical property Prefix
Property Proportion / Ratio Proton Stable State (of matter) Symbol
Meaning The temperature at which a solid substance becomes a liquid. Type of bonding which exists in metal elements. Two or more non-metal atoms that are chemically joined together by covalent bonds. Not charged.
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Sub atomic particle with no charge and mass of 1 amu. It is located in the nucleus. Atoms in group 8 (sometimes called 0). Very unreactive non metals. Have a full outer electron shell. Centre of an atom containing protons and neutrons. Electrons located in the outer energy shell (furthest from the nucleus) A horizontal row of elements in the periodic table. The table that lists all the elements in order of increasing atomic number, arranged into groups and periods. What a substance is like or what it can do without reacting e.g.bpt, mpt, density. A few letters placed before the word that it affects.
Any characteristic of an element. The quantity of one substance compared to another. Sub atomic particle with a positive charge and mass of 1 amu. It is located in the nucleus. Has a full outer shell of electrons. Solid, liquid or gas. One or two letters that represent an element.
Atomic Structure, Bonding & Properties Glossary Word Transition metal Valency
Meaning Block of elements shown on periodic table between group 2 and group 3. The combining power of an atom (the number of bonds a particle can form). It is also the number of electrons an atom needs to lose or gain to achieve a full outer shell of electrons.
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