The Periodic Table Practice Questions

Using the letters D, L, M, Q, R and T, give the letters of two elements in period 2.

Using the letters D, L, M, Q, R and T, give the letter of the element in group 1.

Using the letters D, L, M, Q, R and T, give the letters of two elements that are metals.

One of these elements has the electronic configuration 2.8.6.

Give the letter of this element.

State the property of the elements that Mendeleev used to put them in order.

Describe two other features of the way Mendeleev arranged the elements in his periodic table.

Which row shows the group and period of the periodic table in which element J is found?

State what the atomic number of an element tells you about an atom of that element.

Elements in the same group of the periodic table have similar chemical properties.

Explain why.

Explain why Mendeleev left a gap below silicon in his periodic table.

Use the information in the table to explain why the discovery of germanium increased scientists' confidence in Mendeleev's periodic table.

State which of these two elements comes first in the modern periodic table, and give a reason for your answer.

Mendeleev arranged the elements in order of increasing relative atomic mass. Explain why this did not give the correct order for tellurium and iodine.

An atom of silicon has an atomic number of 14.

Write the electronic configuration of an atom of silicon.

An atom of aluminium has an atomic number of 13.

Draw a diagram to show the electronic configuration of an atom of aluminium. Show all the electrons as crosses (×).

An atom of element G has the electronic configuration 2.8.8.

Deduce the group and period of element G, explaining your answer.

Write the electronic configuration of an atom of element Y.

Give the letters of the two elements that are in the same group of the periodic table. Explain your answer.

Elements W and Y are metals, but element X is a non-metal.

Explain this difference in terms of the atomic structures of these elements.