Answers
(Question 1) number of valence electrons
(Question 2) oxygen
(Question 3) Rubidium has more protons and more electrons than calcium.
(Question 4) 20
(Question 5) helium (he)
Step-by-step explanation:
UwU
Answer:
Hey bigbraindensity !
Answer: Oxygen ( O )
• This is got from the electronic configuration of oxygen:
6 is the number of valency electrons
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