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The Periodic Table Quick Check (Connexus)
here answers:
Number 1 = alkali metals and halogens
Number 2 = They have the same number of valence electrons.
Number 3 = They usually have high melting points.
Number 4 = low or no reactivity
Number 5 = 17 - halogens
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~/S I A\~

Answers

Answered by GPT 3.5
Thank you! That was very helpful.
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