3 years ago

From the illustration of the potassium atom, fill in the periodic table selection.

Physics

1 answer:

stich3 [128]3 years ago

3 0

Answer:

2 in shell 1; 8 in shell 2; 8 in shell 3 and 1 in shell 4 ; 19 total protons and electrons

Explanation: Potassium is in Group 1 Period 4 and will have 1 valence electron that is 4s1 electron configuration.

Atomic mass =

39.10 = 19 protons + 20 neutrons

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