Question

Which of the following pairs has both members from the same group of periodic table?

• A. $Mg,Ba$
• B. $Mg,Na$
• C. $Mg,Cu$
• D. $Mg,K$

Answer 1

The correct option is A $Mg,Ba$

Since $Mg$ and $Ba$ belongs to Group $2$:

$Mg$ and $Na⟶$ $Mg$ $(Group$ $2)$, $Na$ $(Group$ $1)$

$Mg$ and $Cu⟶$ $Mg$ $(Group$ $2)$, $Cu$ $(Group$ $11)$

$Mg$ and $Cl⟶$ $Mg$ $(Group$ $2)$, $Na$ $(Group$ $17)$