Question

what would be the balanced formula for a compound made from beryllium and chlorine based on balance of charges?
a becl₂
b 2becl
c be₂cl
d becl

Explanation:

Step1: Determine beryllium ion charge

Beryllium (Be) is in group 2 of the periodic table and forms a +2 ion, $Be^{2+}$.

Step2: Determine chlorine ion charge

Chlorine (Cl) is in group 17 and forms a -1 ion, $Cl^{-}$.

Step3: Balance the charges

To balance the +2 charge of beryllium, we need 2 chlorine ions. So the formula is $BeCl_{2}$.

Answer:

A. $BeCl_{2}$