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wh2eepJarElw
wh2eepJarElw wh2eepJarElw
  • 30-12-2015
  • Chemistry
Answered

Which electron configuration represents an

atom of chlorine in an excited state?

(1) 2–8–7 (3) 2–8–6–1

(2) 2–8–8 (4) 2–8–7–1

Verified Answer :

khyahjudah
khyahjudah khyahjudah
  • 30-12-2015

(4)2-8-7-1
The maximum number of electrons in the second two shells is 8, but since there is 7 in the third she'll and 1 in the fourth, that means that one electron was moved to the last shell, putting the atom in the excited state.

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