1.Which diatomic molecule below would be useful in saying good-bye?
O2
N2
I2
Ta2
Li2
2.Which element is best for use in flash bulbs?
Mn
Mg
Cs
Ca
Sr
O2
N2
I2
Ta2
Li2
2.Which element is best for use in flash bulbs?
Mn
Mg
Cs
Ca
Sr