Based on the periodic table , which of the following groups of elements should have very similar chemical properties? a. potassium (k), aluminum (al), neon (ne) b. carbon (c), iodine (i), hydrogen (h) c. lithium (li), sodium (na), potassium (k) d. manganese (mn), magnesium (mg), molybdenum (mo)

option C= lithium , sodium and potassium shows similar chemical properties.

Explanation:

The elements shows similar chemical properties if they have same number of valance electrons.

As we move left to right in periodic table the number of valance electrons increases in case of every element

When we move top to down in the group of periodic table the number of valance electrons remain same. So the elements in same group shows similar properties.

For example:

In given options the elements in option C belongs to the same group i.e group one and all are alkali metals. That's why lithium , sodium and potassium shows similar chemical properties.

increased stability in the completion of fluorine's outer shell.