C4 - Ionic bonding Flashcards

1
Q

What is an ion?

A

An ion is a charged atom or a group of atoms with a positive or negative charge.

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2
Q

What is a molecule?

A

A molecule has one to more atom in its formula.

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3
Q

What type of atom is an atom that has too many electrons and needs to lose them?

A

A metal atom.

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4
Q

What type of atom is an atom that has too few electrons and needs to gain them?

A

A non-metal atom.

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5
Q

Does the metal become positive or negative?

A

It becomes positive because it loses electrons.

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6
Q

Does the non-metal become positive or negative?

A

It becomes negative because it gains electrons.

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7
Q

Why do some molecules have high melting points?

A

This is because the ions form giant lattice structures that need a lot of energy to break down.

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8
Q

Why do some molecules not conduct electricity?

A

This is because the ions are not able to move (they are in a fixed position).

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