zschoolwork2016 zschoolwork2016

09-05-2017
Chemistry

contestada

Potassium has an atomic number of 19.
Which of a potassium atom's electrons are its valence electrons?
Select one:
a. Those in the third shell from the nucleus.
b. Those in the second shell from the nucleus.
c. Those in the outermost shell.
d. Those in the innermost shell.

Respuesta :

mpanderla95 mpanderla95

09-05-2017

The correct response would be C. Those in the outermost shell, and of highest electron energy are the valence electrons for potassium.

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