Question

An element X which has atomic number 12 forms an oxide with oxygen (atomic number 8 ) what is the formula of oxide​

Answer 1

Answer:

MgO

Explanation:

Magnesium has atomic no. 12

2Mg+O2----- 2MgO

Answer 2

$\sf{Element \longrightarrow Atomic \: number}$

$\sf{Magnesium \longrightarrow 12}$

$\bf{Oxide \: formed \: by \: Magnesium:}$

$\sf{2Mg + O_2 \longrightarrow 2MgO}$