14.1 The properties of metals

• Chem
• Secondary Education

The properties of metals

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• Compare the general physical properties of metals and non-metals, including: (a) thermal conductivity (b) electrical conductivity (c) malleability and ductility (d) melting points and boiling points
• Describe the general chemical properties of metals, limited to their reactions with: (a) dilute acids (b) cold water and steam (c) oxygen

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Noble gases

00:06

The noble gases are found in what group of the periodic table?

1. Group I
2. Group VIII or 0
3. Group II
4. Group V

00:18

How many elements belong to Group VIII or the Noble gases?

1. 5
2. 6
3. 7
4. 8

00:23

The position of the noble gases in the periodic table means that they have a common ___________.

1. electron number
2. electronic structure
3. electron shell
4. electron cloud

00:39

What makes the noble gases stable and unreactive?

1. full inner shell
2. full outer shell
3. total of 8 electrons
4. complete electron shell

00:56

Cite at least one common use of the noble gases in daily life.

03:30

Cite one other use of noble gases based on their chemical properties.

04:16

Write your prediction. What do you think will happen?

04:34

The noble gases become more dense as you go ______________.

1. down the group
2. up the group
3. across the period
4. across the periodic table

Neon produces a _________ light.

1. blue-green or lavender
2. pale pink
3. orange-red
4. gray or green

Krypton produces a _________ light.

1. blue-green or lavender
2. pale pink
3. orange-red
4. gray or green

Argon produces a _________ light.

1. blue-green or lavender
2. pale pink
3. gray or blue
4. gray or green

Xenon produces a _________ light.

1. blue-green or lavender
2. pale pink
3. gray or blue
4. gray or green

Helium produces a _________ light.

1. blue-green or lavender
2. pale pink
3. gray or blue
4. gray or green

The noble gases are in Group VIII (or Group 0) and they are non-metals.

AGREE

DISAGREE

Noble gases have very low melting and boiling points.

AGREE

DISAGREE

Noble gases are diatomic, colourless gases.

AGREE

DISAGREE

Noble gases are inert or unreactive.

AGREE

DISAGREE

Noble gases are inert or unreactive.

AGREE

DISAGREE

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