Question

Write the Lewis dot method for beryllium and calcium ?​

Answer 1

Answer is in the attachment. I hope this helps.

Answer 2

Lewis dot structure for Beryllium:

• Beryllium has atomic number 4.

• So, it's electronic configuration is 1s² 2s²

• So, as per shell : $K_{2} L_{2}$

• Now, refer to the 1st diagram.

Lewis dot structure for Calcium:

• Calcium has atomic number 20.

• So, it's electronic configuration is 1s² 2s² 2p⁶ 3s² 3p⁶ 4s².

• So, as per shell : $K_{2}L_{8}M_{8}N_{2}$

• Now, refer to 2nd diagram.

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• In Lewis Dot Structure, we will simply denote the number of valence electrons decide the name of the element.