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5 March, 04:56

Which group of elements are considered to be in the same family?

A. helium, neon and argon

B. potassium, calcium and scandium

C. manganese, iron and cobalt

D. hydrogen and helium

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Answers (2)
  1. 5 March, 05:15
    0
    A. helium, neon and argon, because they are in the same group or column
  2. 5 March, 05:25
    0
    I think the answer is a
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