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Chemistry Unit 1 > 1.3.1 Bonding > Flashcards

1.3.1 Bonding Flashcards

1
Q

What is metallic bonding between?

A

Metals

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2
Q

What is covelant bonding between?

A

Two non-metals

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3
Q

What is ionic bonding between?

A

A metal and a non-metal

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4
Q

What forces hold ionic bonds together?

A

Strong electrostatic forces between oppositely charges ions

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5
Q

What structure does ionic bonding form?

A

Forms a 3D structure of a lattice

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6
Q

What is ionic formulae?

A

It is the empirical formula of a compound. E.g. Al(3+) + O(2-) = Al2 O3

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7
Q

What is the formation of atoms in metallic bonding in a solid state?

A

The atoms will be closely packed together.

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8
Q

What will happen to the electrons in the highest occupied energy level?

A

Electrons in the highest occupied energy level become delocalised.

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9
Q

What forces hold metallic bonding together?

A

There are strong electrostatic forces of attraction between the cations and the electrons

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10
Q

What does malleable mean?

A

Malleable - can be hammered into shape

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11
Q

What does ductile mean?

A

Ductile - can be stretched out to make a wire

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12
Q

What is the most malleable and ductile element?

A

Gold is the most malleable and ductile element

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13
Q

Why are metals malleable and ductile?

A

Metals are malleable and ductile because layers of metal cations can slide over each other without any bonds breaking.

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14
Q

What can be added to stop metal layers sliding over each other so easily?

A

Alloys can be added to stop layers sliding

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15
Q

What is the structure of metals such as magnesium and zinc?

A

Hexagonal close-packed structure

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16
Q

What is a covelant bond?

A

A covelant bond is a shared pair of electrons

17
Q

Why are covelant bonds strong?

A

A lot of energy is needed to overcome covelant bonds, making them strong

18
Q

What does isoelectronic mean?

A

Same electronic configuration

19
Q

What is a macromolecular structure?

A

It is a giant covelant structure

20
Q

What are two allotropes of carbon?

A

Diamond and graphite are allotropes of carbon (same state, different structure)

21
Q

What is a co-ordinate bond?

A

One of the two atoms contribute both of the bonding pair of electron in a covelant bond.

22
Q

What must there be for a co-ordinate bond?

A
  • A lone pair on one atom

- A vacant orbital on the other

23
Q

What is an example of a co-ordinate bond?

A

Ammonia (NH3) and Boron trifluride (BF3)

24
Q

What is a polyatomic ion?

A

Charged particle consisting of two or more atoms joined together by covelant bonds

Chemistry Unit 1 (14 decks)

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