Chemistry 0620 · IGCSE · Isotopes

Isotopes — practice question

The six atoms below are shown in nuclear notation. $^{3}_{1}A\quad ^{3}_{2}D\quad ^{12}_{6}E\quad ^{13}_{6}G\quad ^{14}_{7}J\quad ^{19}_{9}L$
(a(i))[1]

Use the atoms in the list to answer the questions below. Each atom may be chosen once, more than once, or not at all. Choose one atom from the six given that contains exactly seven protons.

(a(ii))[1]

Choose one atom from the six given that has exactly six neutrons.

(a(iii))[1]

Choose one atom from the six given that has more protons than neutrons.

(a(iv))[1]

Choose one atom from the six given that has the electronic structure [2,5].

(a(v))[1]

Choose one atom from the six given that is an atom of an element in Group VII of the Periodic Table.

(a(vi))[1]

Choose one atom from the six given that is an atom of a noble gas.

(b(i))[2]

Among the six atoms shown, two are isotopes of one another. What is meant by isotopes?

(b(ii))[1]

Which two of the six atoms shown are isotopes of one another?

(b(iii))[1]

Why do isotopes have the same chemical properties?

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