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GCSE Chemistry
1. Atomic structure and the periodic table
1.9 Group 0
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Noble gases have eight electrons in their outer shell, except
helium
, which has two.
True
Noble gases like neon and argon have eight electrons in their outer
shells
Noble gases are chemically unreactive because of their stable electron
configuration
What is the electron configuration of neon?
1s^2 2s^2 2p^6
Noble gases are chemically inert because they have full outer electron
shells
The electron configuration of an atom describes the arrangement of its electrons in
shells
Match the noble gas with its chemical symbol:
Helium ↔️ He
Neon ↔️ Ne
Argon ↔️ Ar
Krypton ↔️ Kr
Xenon ↔️ Xe
What is the electron configuration of helium?
1s^2
At room temperature, noble gases exist as
monatomic
Noble gases exist as monatomic gases at room temperature due to their stable
electron configurations
.
True
Noble gases, also known as inert gases, are located in Group
0
What is the electron configuration of helium?
1s^2
The full outer electron shell of noble gases prevents them from forming
chemical bonds
.
True
Noble gases are chemically unreactive due to their stable electron
configuration
Arrange the noble gases in order of increasing atomic number:
1️⃣ Helium (He)
2️⃣ Neon (Ne)
3️⃣ Argon (Ar)
What is the outer electron configuration of neon?
2s^2 2p^6
Noble gases have a full outer shell configuration, making them
stable
.
True
Why do noble gases exist as monatomic gases at room temperature?
Stable electron configurations
In which group of the periodic table are noble gases located?
Group 0
Arrange the noble gases in order of increasing boiling points:
1️⃣ Helium
2️⃣ Neon
3️⃣ Argon
4️⃣ Krypton
5️⃣ Xenon
6️⃣ Radon
Match each noble gas with its primary use:
Helium ↔️ Cryogenics
Neon ↔️ Neon signs
Argon ↔️ Protective atmospheres
Xenon ↔️ Anesthetics
Group 0 elements are located in the rightmost column of the
periodic
What is the atomic number of argon?
18
Order the noble gases by increasing atomic number:
1️⃣ Helium
2️⃣ Neon
3️⃣ Argon
Noble gases are reactive at room temperature.
False
Noble gases do not gain, lose, or share electrons due to their full outer
electron shells
.
True
Noble gases are exceptionally stable and non-reactive because they do not easily gain, lose, or share
electrons
What is the boiling point of helium in degrees Celsius?
-269 °C
Noble gases are chemically inert due to their stable electron
configurations
What is the outer electron configuration of argon?
1s^2 2s^2 2p^6 3s^2 3p^6
What is the name given to Group 0 elements in the periodic table?
Noble gases
The full outer electron shell of
noble gases
makes them exceptionally stable.
True
Argon has 8 electrons in its outer
3s
and 3p shells.
Noble gases are chemically
inert
due to their full outer electron shells.
Match each noble gas with its electron configuration:
Helium ↔️ 1s^2
Neon ↔️ 1s^2 2s^2 2p^6
Argon ↔️ 1s^2 2s^2 2p^6 3s^2 3p^6
The density of noble gases increases due to increasing atomic mass and
volume
.
Using nitrogen-hydrogen blends in welding reduces reliance on
argon
.
True
What is the boiling point of helium in degrees Celsius?
-269
Arrange the noble gases in order of increasing boiling point:
1️⃣ Helium (He)
2️⃣ Neon (Ne)
3️⃣ Argon (Ar)
Noble gases form molecules at room temperature.
False
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