Question

If the electronic configuration of an element X is
1s22s22p 3s23p5 then it belongs to which period and
group of the periodic table?​

Answer 1

Explanation:

The element 'x' belongs to

period - 3 and

group - 17

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Answer 2

Explanation:

Given -

• Electronic configuration of Element X is 1s² 2s² 2p⁶ 3s² 3p⁵

To Find -

• This Element belongs to which period and Group in periodic table

Solution -

Electronic configuration = 1s² 2s² 2p⁶ 3s² 3p⁵

Atomic number = 17

Element Name = Chlorine

Symbol = Cl

Atomic mass = 35.5 g/mol

Period = 3

Group = 17

Valency = 1

Group name = Halogen Group