based on the valency of elements write the molecular formula of oxide of first group elements
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molecular formula will be R²O. where R is the element of first group.
For example Na²O.
For example Na²O.
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the first group elements are hydrogen, lithium, sodium, potassium, rubidium, francium, caesium
its oxides are ......
H20
LI20
NA2O
K20
RB2O
Fr2O
Cs2O
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