Question

31
A part of the periodic table has been shown below.
13
Groups
| 14 | 16 | 17
Period
1
2
18
А
EG
D
Answer the following questions on the basis of position of the elements in the
above table.
a) Which element is a noble gas?
b) Which element is most electro negative? Give reason.
c) Write the electronic configeration of 'D.​

Answer 1

Answer:

a. 17 groups of elements are noble gas.

I know only first question. I am sorry