Question

An element is placed in 2nd group and 3rd period of the periodic table, burns in the presence of oxygen to form a basic oxide. i) identify the element ii) write the electronic configuration iii) write the balanced equation when it burns in the presence of air. Iv) write the balanced equation when this oxide is dissolved in water. V) draw the electrons dot structure for the formation of this oxide.

Answer 1

Answer:

I) magnesium

ii) K2 L8 M 2- atomic no is 12

III) 2Mg + O2 - 2MgO

iv) MgO + H2O- Mg (OH)2

v) Above image