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51 Compare the
energy of an electron in the first
shell of technetium, to the energy
of an electron in the third shell of
the same atom.
| Answer-->
The
electron in the 3rd shell
has more energy than the
electron in the first shell. |
52 State, in terms
of protons and neutrons, why the
various nuclides of technetium
are isotopes of each other.
| Answer-->
Same number
of protons and a different
number of neutrons |
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