Question

what are ions?
what are polyatomic ions? Give examples.​

Answer 1

Answer:

An ion is a particle, atom or molecule with a net electrical charge. The charge of the electron is considered negative by convention. The negative charge of an ion is equal and opposite to charged proton considered positive by convention.

Some examples of cations, or positive ions, include the following:

• Aluminum - Al 3+
• Barium - Ba 2+
• Bismuth - Bi 3+
• Cadmium - Cd 2+
• Calcium - Ca 2+
• Cesium - Cs +
• Chromium (III) - Cr 3+
• Cobalt - Co 2+

Hope it helps you

Answer 2

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ʀᴇǫᴜɪʀᴇᴅ ᴀɴsᴡᴇʀ-:

What are ions?

➜An ion is a particle, atom or molecule with a net electrical charge. The charge of the electron is considered negative by convention. The negative charge of an ion is equal and opposite to charged proton considered positive by convention. 

What are polyatomic ions? Give examples.?

➜Polyatomic ions are ions which consist of more than one atom. For example, nitrate ion, NO3-, contains one nitrogen atom and three oxygen atoms. The atoms in a polyatomic ion are usually covalently bonded to one another, and therefore stay together as a single, charged unit.

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