Because without the mass, you can't find the molar mass and other formulas in Chemistry.
Explanation:
Valence electrons are not related in anyways to nuclear reactions.
They do not take part in nuclear reactions. Only some inner orbital electrons have the tendency of taking part in nuclear reactions.
The valence electrons are the outermost electrons in an atom.
Nuclear reactions takes place in the nucleus of an atom.
Valence electrons are exchanged and shared for chemical reactions to take place in between atoms.
We can conclude that valence electrons have no relevance in nuclear reactions
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Chemical reactions brainly.com/question/3953793
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Answer:
There are 110 elements known to us, out of which 92 are naturally occurring, while the rest have been prepared artificially. Elements are further classified into metals, non-metals, and metalloids..
Explanation:
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The stored energy of an object is kinetic energy
