Question

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Answer 1

Answer:

1. helium , carbon

2.A cation is an atom or a group of atoms bearing one or more positive electric charges. An anion is an atom or a group of atoms bearing one or more negative electric charges. Cations carry one or more positive charges. Anions carry one or more negative charges.

Explanation:

this is answer

Answer 2

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1.Helium and Carbon are two elements with same number of protons and neutrons.

2.A cation is an atom or a group of atoms bearing one or more positive electric charges. An anion is an atom or a group of atoms bearing one or more negative electric charges. Cations carry one or more positive charges. Anions carry one or more negative charges.