Where would you locate the element with electronic configuration 2, 8 in the Modern Periodic Table?
(a) Group 8
(b) Group 2
(c) Group 18
(d) Group 10
Answer
Electronic configuration: 2,8
- This element has a completely filled outermost shell which means its octet is complete .
- Elements whose octets are complete are called noble gas and they are placed in group 18 in the modern periodic table.
So, the given element is a noble gas and hence, it belongs to group 18.
Therefore, the correct option is (c) Group 18