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Chemistry, 24.09.2019 18:00 only1123

Which statement explains why neon is a group 18 element?
(1) neon is a gas at stp.(2) neon has a low melting point.
(3) neon atoms have a stable valence electron configuration.
(4) neon atoms have two electrons in the first shell.

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Which statement explains why neon is a group 18 element?
(1) neon is a gas at stp.(2) neon ha...

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