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What pair of elements have the same number of valence electrons?

a) Li and Na
b) Mg and K
c) Ti and Nb
d) Rb and Zr

User Denis
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2 Answers

5 votes

Answer: its A

Step-by-step explanation:

User Jason Shultz
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1 vote

The ans is A.

You need to refer back to the periodic table n find the 2 the is under the same grp.

User Gianne
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