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Which of the following pairs of elements would have the most similar chemical properties?

A.Boron (B) and Fluorine (F) B.Hydrogen (H) and Helium (He) C.Beryllium (Be) and Magnesium (Mg) D.Carbon (C) and Oxygen (O)

3 answers

I have tried to answer this a couple times but cant figure out what the answer is. :(
C. Both are in periodic table column II
They have two valence electrons
Damn these from like 11 years ago these people prob have family’s now and don’t even remeber doing this ni more