Unit 1 – Atomic Structure

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Presentation transcript:

Unit 1 – Atomic Structure Learning Target 1.3 – Identify ions and be able to determine their charge. Unit 1 – Atomic Structure

Ions Ions are atoms that have gained or lost electrons. The gaining or losing of electrons is referred to as the process of ionization (becoming an ion) Atoms start with equal numbers of positive- protons and negative-electrons giving the atom an overall charge of zero or neutral. Atoms become ions by gaining or losing electrons.

If an atom gains electron(s) it becomes a negative ion. Ions If an atom gains electron(s) it becomes a negative ion. Negative ions are called Anions. If an atom loses electron(s) it becomes a positive ion. Positive ions are called Cations.

Becoming a Positive Ion (Cation) By Losing An Electron

Becoming a Negative Ion (Cation) By Gaining An Electron