Explanation:
covalent bond enjoy your anseer
Hydrogen is the only atom that does not have neutron electrons in the first energy level/shell.
The law of conservation of mass<span> states that </span>mass<span> in an isolated system is neither created nor destroyed by chemical reactions or physical transformations. According to the </span>law of conservation of mass<span>, the </span>mass<span> of the products in a chemical reaction must equal the </span>mass<span> of the reactants.
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