blackopsty23
29.08.2019 •
Chemistry
How many protons, neutrons, and electrons are in potassium, nitrogen, and oxygen?
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Ответ:
number of protons: 19
number of neutrons: 20
number of electrons: 19
Nitrogen
number of protons: 7
number of neutrons:7
number of electrons: 7
Oxygen
number of protons: 8
number of neutrons:8
number of electrons: 8
Ответ:
b
Explanation: