Answer:
Physical Change
Explanation:
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C. As we know, an atom is made of three parts--protons (+), neutrons (core), and electrons (-) When one of these atoms loses one or more electron(s), it becomes a cation, or a positively charged ion. Inversely, when this atom gains a positively charged ion, [the atom] becomes a negatively charged atom, or an anion. The bond is made through electrostatic attraction, and a bond between these two "halves of a whole", it is known as an ionic bond.
Nitrogen atomic no.=7
electron=7its electronic configuration =1s2 2s2 2p3
Answer:
Speed is measured over time.
Explanation:
