Question

How do the properties analyzed in this activity show periodicity of the chemical elements?

Answer 1

In the periodic table, the elements of the same group and elements of the same column, have similar reactivity because they have a similar configuration in their valence electrons.

There are some factors which determine the chemical properties if an element of the periodic table.

• No. of arrangement of electron in an atom.
• No. of valence electrons.
• Arrangement of electrons.