Question

Name any two elements of group one and write their electronic configurations. What similarity do you observe in their electronic configurations? Write the formula of oxide of any of the aforesaid element.

Answer 1

Elements of group 1 r sodium (Na) and Potassium (K).
Electronic configuration of Na 2,8,1
Electronic configuration of k 2,8,8,1
The similarity in electronic configuration is that the last shell has 1 valance electron
The formula of sodium oxide is Na2O