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more science

Across
This does not change during a phase change
Solid to gas
Frequency of a wave is measured in this
(Two words ) equals the number of protons in an element
Gas to solid
Maximum movement of a wave away from the rest position
Gas to liquid
A chemical bond in which two atoms share a pair of valence electrons (two words)
Solid to liquid
Liquid to gas
Metals, non metals and these are found on the periodic table
This type of gas is colorless, odorless and very unreactive (stable)
A reversible physical change that occurs when a substance changes from one state of matter to another
Down
(two words) equals the sum of the protons and neutrons in the nucleus of an atom
Lowest point of a wave
Liquid to solid
Wave bounces off a surface it cannot pass through
Gas to liquid
Non metals are found on this side of the periodic table
The force that holds cations and anions together (two words)
Highest point of a wave