0.428571429 moles is your exact answer. Hope this helps!!! (:
Answer:
i cant see the whats in the picture
diatomic hydrogen is written as H2 (2.02 grams H2) <------- if each hydrogen atom is 1.01 grams, then two hydrogen atoms are 2.02 grams 2.0 moles H2 X 2.02 grams H2 ------------- (divide to cancel moles) = 4.04 grams/mole H2 ÷ one mole = 4.04 grams H2
Answer for your question is;
2,6 = 8
The first shell is 2 electrons the other shell is 6 electrons
