Protons and Neutrons affect the mass. Protons and Electrons change the charge of the atom (positively or negatively charged). Valence electrons are the ones that do fun stuff in chemical reactions, they are responsible for making/breaking bonds, at least to my understanding.
Hope this helps.
Answer:
Na2He
Explanation:
This is the correct answer
The circulatory system is the answer :)
The answer is bob because he could pass the a or b gene and the mom could pass the o gene
Malic acid and I need points