Forming bonds Flashcards

1
Q

Name a property of an ionic compound?

A

High melting and boiling points - Ionic bonds are very strong - a lot of energy is needed to break them. So ionic compounds have high melting and boiling points.

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2
Q

Name another property of an ionic compound?

A

Conductive when liquid - Ions are charged particles, but ionic compounds can only conduct electricity if their ions are free to move. Ionic compounds do not conduct electricity when they are solid - only when dissolved in water or melted.

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3
Q

How are ionic compounds compounds formed?

A

An ionic compound is formed by the complete transfer of electrons from a metal to a nonmetal and the resulting ions have achieved an octet. The protons do not change. Metal atoms in Groups 1-3 lose electrons to non-metal atoms with 5-7 electrons missing in the outer level.

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4
Q

What is an ionic compound?

A

Ionic bonds form when a metal reacts with a non-metal. Metals form positive ions; non-metals form negative ions. Ionic bonds are the electrostatic forces of attraction between oppositely charged ions.

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5
Q

How are molecular compounds formed?

A

When atoms of at least two different elements come together to form chemical bonds, these molecules can be called compounds. Sodium chloride (NaCl) is a classic example of an ionic compound, or compound formed by ionic bonds.

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6
Q

What happens when different elements combine?

A

They form compounds

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7
Q

Name an example a a compound with ionic bonds

A

Name of ionic compound .i.e. Metal and non-metal, e.g. Sodium chloride and magnesium oxide

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