Determine the composition of the atom of element 7.
| December 19, 2020 | education
NITROGEN
Element 5 group, 2 period
Sequence number -7
Oxidation states from -3 to +5
Atomic mass = 14, nuclear charge – +7, number of energy levels = 2
p = 7, e = 7, n = Ar-p = 14-7 = 7.
Physical properties: gas colorless gas, odorless
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