Question

Write the general electronic configuration of first group elements

Answer 1

The first group elements have valency one

Answer 2

the general electronic configuration of first group elements ns^1.

• the first group elements of the periodic table are called alkali metals.
• example of these elements are - Li  (lithium) , Na (sodium) etc.
• these elements have one electron in the outer most shell.
• the formula of general electronic configuration of first group elements is ns^1,  where n = number of period.
• for example- the atomic number of Li is 3 , so its configuration is 2,1.
• the last shell consist of one electron.
• group 1 elements belong to the s-block.