Question 37 – Atomic structure - Edexcel Chemistry Questions

a.

Which sub-atomic particles are present in the nucleus of a neon atom?

A electrons and neutrons
B electrons and protons
C electrons, neutrons, and protons
D neutrons and protons

[1]

b.

Use words from the box to complete the sentences about the particles in a neon atom. Each word may be used once, more than once, or not at all.

\text{[electrons, neutrons, nuclei, protons]}

The particles with the smallest mass are __________.
An atom of neon has no overall charge because it contains equal numbers of __________ and __________.
The chemical properties of neon depend on the number of __________ in the outer shell.

[3]

c.

What is the electronic configuration of a neon atom?

A 2.2
B 2.8
C 2.8.8
D 2.8.2

[1]

d.

Neon has two isotopes that can be represented as $20Ne^{20}\text{Ne}$ and $22Ne^{22}\text{Ne}$ .

Explain, with reference to sub-atomic particles, what is meant by the term isotopes.

[2]

e.

The relative atomic mass of neon is 20.2. How does this information support the fact that a sample of neon contains more $20Ne^{20}\text{Ne}$ than $22Ne^{22}\text{Ne}$ ?

[2]

f.

Neon belongs to the family of noble gases and is inert.

What is meant by the term inert?

[1]

g.

Why are noble gases inert?

[2]

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