What is the likely formula of a compound formed between element M in group 2

CHEMISTRY
POST UTME UNICAL

What is the likely formula of a compound formed between element M in group 2 and between element X in group 7?

  • A)
    M\(_7\)X\(_2\)
  • B)
    MX\(_2\)
  • C)
    M\(_2\)X\(_7\)
  • D)
    M\(_2\)X

Correct Answer: B)
MX\(_2\)

Explanation

Valence electron of y is 2 Valence electron of x is 1 M. X 2. 1 You will then cross multiply You will get MX2


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