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Chemistry
PBJ
31 May, 21:10
How many valence electrons are in Tc
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Cassis
31 May, 23:43
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Tc is Technetium, and it has an atomic number of 43. Its atomic configuration is [Kr] 5s (1) 4d (5) [I'm on my phone so I can't do numbers on shoulders, pretend that 1 and 5 are on the s and d's shoulder]
The outside most ring is the 4d (5), and the d orbital can hold ten electrons.
Valence electrons are electrons, in you could say the outside ring that isn't filled, the extra ones. In this case, there are 5.
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