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:
Two elements of group 1 are Sodium (Na) and potassium (K).
Their electronic configurations: Na = 2,8,1; K = 2,8,8,1
Similarity: Both have one valence electron.
Formula of their oxides: Na2o; K2o.