An anion always . has a positive charge has a negative charge contains a group of two or more atoms with a positive charge contains a metal and a nonmetal forms covalent bonds

has a negative charge

Explanation:

Ions may be defined as the elements that acquires positive or negative charge over them. Two main types of ions are cations and the anions that are formed by the gain or loss of the element.

Cations are formed when the electrons are lost and thus protons outweigh the electrons, thus generating a positive charge.

Example: ,

Anions are formed when the electrons are gained and thuselectrons outweigh the protons, thus generating a negative charge.

Example: ,

the answer is c

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