RmcTaujad2enti RmcTaujad2enti
  • 16-02-2017
  • Chemistry
contestada

What element has 3 electrons in the 2p sublevel?

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dmks
dmks dmks
  • 16-02-2017
The element should be nitrogen
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babygirl426 babygirl426
  • 16-02-2017
Aufbau says that the sublevels fill 1s2, 2s2, 2p6. That would mean that you must have filled 1 and 2 s (=4) and 3 more.

Last I checked, 3 + 4 = 7. Which element has 7 electrons?

I'll give you a hint: its atomic number is 7. Another hint: its symbol is N.
Answer Link

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