Question

Search... The atomic number of two elements A and B are 11 and 12 respectively which elements exhibit highest metallic property we write the molecular formula of the compound formed when these elements combine with the element having atomic number 8

Answer 1

A must be sodium(Na)
and B should be magnesium (Mg)
out of them sodium has highest metallic property ( 1st group element)

the element having atomic no 8 is oxygen(O)
if Na reacts with O
Na2O will be formed

if Mg reacts with O
MgO will be formed

hope u understand
ask me if u have any doubts related to this
^^

Answer 2

A and B are 11 and 12 respectively which elements exhibit highest metallic property we write the molecular formula of the compound formed when these elements combine with the element having atomic