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A ______ is an atom from group 7 on the periodic table (halogens) which has gained an electron to form an item.
If a substance is ________, it reacts easily.
__________ refers to how reactive something is.
If a substance is ____, it is not mixed with anything else.
If you ______ a substance, it means your turn it into a pure element or compound.
________ is a carbon allotrope.
____________ describes the process of breaking down a compound using an electrical current.
__________ means the charge is removed or released.
Two or more elements in a substance make a ________.
A mineral or rock that metal is extracted from is called ___.
If a substance is _____, it means it is unreactive.
Protons, neutrons, and electrons are the _________ particles found in an atom.
An _________ is a form in which an element can exist, for example charcoal, graphite, and diamonds are are allotropes of carbon.
An ___ is formed when an atom or a group of atoms gains or loses and electron.
