I think the number of protons in the nucleus the number of valence electrons atomic mass...
Answer:
A.
Explanation:
There are no vehicle emissions other than water vapor. This means no pertroleum products and no fossil fuels. :)
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Metallic bonds<span>, the valence electrons from the s and p orbitals of the interacting metal atoms delocalize</span>
La ciudadanía cambia conforme el tipo de democracia