student123441 student123441

22-10-2020
Chemistry

contestada

what is the answer for each question ?!
30 POINTS!

what is the answer for each question 30 POINTS class=

Respuesta :

huniaibrahim05 huniaibrahim05

22-10-2020

Answer:

proton

proton and neutron

electron shells

selenium

Explanation:

Answer Link

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