IGCSE Chemistry Extended 2.2.6—Periodic table shell rules: (a) Group Topic Practice

Period 3 of the Periodic Table is shown.

Answer the following questions using only these elements.
Each element may be used once, more than once or not at all.
State which element:

is made of atoms which have a full outer shell of electrons

The symbols of the elements in Period 2 of the Periodic Table are shown.

Li Be B C N O F Ne

For each of the following, give the symbol of an element from Period 2 which matches the description.

Each element may be used once, more than once or not at all.
Which element:

has atoms with only two electrons in the outer shell

The electronic structures of some atoms and ions are shown.

Write the letters, A, B, C, D, E, F, G or H, of the electronic structures which show:

atoms of two different noble gases and

The table shows the numbers of protons, neutrons and electrons in particles A to I.

Answer the following questions about particles A to I. Each letter may be used once, more than once or not at all.

State which of the particles A to I:

are noble gas atoms and

The symbols of the elements of Period 3 of the Periodic Table are shown.

Answer the following questions about these elements.
Each element may be used once, more than once or not at all.
Write the symbol of an element which:

has only two electrons in its outermost shell

Some elements are shown in the order they appear in the reactivity series. The most reactive element is at the top.
> sodium calcium magnesium aluminium zinc iron hydrogen copper

Answer the questions using the list of elements. Each element may be used once, more than once or not at all.

Identify:

a metal with three electrons in the outer shell of its atoms

Table 1.1 gives the electronic configurations of some atoms and ions, A to G.

Answer the following questions about A to G.
Each letter may be used once, more than once or not at all.
State which of the atoms or ions, A to G, could be:

Six different atoms can be represented as follows.
${ }_{1}^{3} \mathrm{~A}$${ }_{2}^{3} \mathrm{D}$${ }_{6}^{12} E$${ }_{6}^{13} \mathbf{G}$${ }_{7}^{14} \mathrm{~J}$${ }_{9}^{19}$ L

For each of the following, give the name of an element from Period 2 (lithium to neon), which matches the description.
Elements may be used once, more than once or not at all.

an element which has atoms with a full outer shell of electrons

An atom of element X contains:
- 5 protons
- 6 neutrons
- 5 electrons.

Which statements about element X are correct?
1 X has an atomic number of 6.
2 X has a nucleon number of 11.
3 X is in Group II of the Periodic Table.
4 X is in the second period of the Periodic Table.