Science, asked by jeetthakur727, 5 hours ago

4. Write Periodic Position of following Elements havior Atomic Number 20 and 17
from their respective electronic configuration

Answers

Answered by Anonymous

Answer- Position of element having atomic number 20 will be be 4th period and 2nd group in the modern periodic table. Its electronic configuration will be (2,8,8,2) It has 2 elements in the outermost shell.This element is calcium,It comes under the group alkaline earth metals(group 2).

The position of element having atomic number 17 will be be 3rd period and 17th group in the modern periodic table. Its electronic configuration will be (2,8,7) it has 7 electrons in the outermost shell and 1 electron is needed to complete its octet,this element comes under the halogen family,This element is Chlorine.

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