In forming a molecular compound, each atom should have <u>valence</u> electrons around it unless there is some specific reasons why this cannot be achieved.
<h3>What is Valence Electrons ?</h3>
Valence electrons is a negatively charged particle present in the outermost shell of an atom.
Example: Oxygen has 6 valence electrons in its outermost shell, Water has 8 valence electrons.
Thus from the above conclusion we can say that In forming a molecular compound, each atom should have <u>valence</u> electrons around it unless there is some specific reasons why this cannot be achieved.
Learn more about the Valence Electrons here: brainly.com/question/371590
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Answer: 
Explanation: \frac{2}{34}\cdot \:100\%\:=\frac{1}{17}
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WHat's a concept map again?
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Answer:
C. It makes sure there is a balance inside the body
Explanation:
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It’s called an isotope which is an atom with the same number of protons but a different number of neutrons