Answer:
Explanation: Covalent bonding occurs when pairs of electrons are shared by atoms. Atoms will covalently bond with other atoms in order to gain more stability, which is gained by forming a full electron shell. By sharing their outermost (valence) electrons, atoms can fill up their outer electron shell and gain stability.
It would be the first one and the third one
The answer is C.energy because it can make light and heat
Elements with atomic numbers from 58 through 71 are part of the
<span>
lanthanide</span> series <span />
Answer:
1. C. The change is easily reversible
2. A. a physical change
Explanation:
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