Question

The group number and period number of an element with atomic number 16 is

Answer 1

Answer:

Period=3

Group=16

Explanation:

The given element has an atomic number of 16

Electronic configuration: 1s²2s²2p⁶3s²3p⁴

FOR IDENTIFYING THE PERIOD

See the highest value of principal quantum number

Here the value is found to be 3

Hence period number=3

FOR IDENTIFYING THE GROUP

First of all, identify the block to which the element belongs

For identifying the block, see the orbital in which the final electron enters, here it is identified as 'p-block'

For p block elements, group number is= (no. of valence electrons+10)

Here, no. of valence electrons is identified to be 6

Hence group number=16