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The periodic table MatchUp
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Click on a top box, then click on its match below. Or, drag a top box and drop it onto the correct match. Match all pairs before clicking ‘Check’.
Isotope
Non-metal
Atomic number
Metal
Periodic table
Element
Electronic configuration
Period
Atomic weight
Group
Proton
Mendeleev
A column of the periodic table
How the early periodic table was organised
An element that forms positive ions when it reacts
An element that does not form positive ions when it reacts
Shows how electrons are arranged in shells around the nucleus of an atom
Scientist who developed the periodic table to predict the existence of undiscovered elements
A substance containing only one type of atom
An atom with the same number of protons as another of the same element, but a different number of neutrons
A positively charged subatomic particle
States the number of protons in an atom
A row of the periodic table
A way to visually display all the elements and their relationships