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romanna [79]
3 years ago
10

WILL GIVE BRAINLEST

Biology
1 answer:
Tems11 [23]3 years ago
7 0

Answer:

Cl-

Ca2+

Explanation:

An ion is a charged atom or group of atoms. An ion may be formed from an atom or from a molecule.

When an ion is formed from an atom, the atom now has either an excess or an insufficient number of electrons. This will lead to the development of a negative or positive charge in the atom as the case may be.

Cl- and Ca2+ are two ions formed from atoms, the first one has an excess of one electron while the other have lost two electrons

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