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- A positively or negatively charged atom or molecule
- This happens when the atom or molecule loses or gains electrons so that the number of protons and electrons is not even. If the atom has more electrons its a negative atom and vice-versa.
- A chemical link between two atoms, which holds the atoms together.
- Some examples are: ionic bond, covalent bond, metallic bond, etc.
- A chemical bond that forms between oppositely charged ions.
- These form between metals and non-metals since metals want to lose electrons and non-metals want to gain electrons.
- A compound made of oppositely charged ions.
- Some examples are: sodium chloride (NaCl), lithium fluoride (LiF), beryllium sulfide (BeS), etc.
- A compound formed when atoms of two or more different elements share electrons.
- Some examples are: carbon tetrafluoride (CF4), oxygen (O2), water (H2O), etc.
- A chemical bond in which one or more pairs of electrons are shared by two atoms.
- These bonds form between non-metals and other non-metals.
The smallest discrete particle of a pure substance, which has one or more shared pairs of electrons.