Question

An element ia placed in 1st group and 3rd period of the periodic table, burns in presence of oxygen to form a basic oxide
(a) identify the element
(b) write the electronic configuration
(c) write the balanced equation when it burns in the presence of air
(d) write a balanced equation when this oxide is dissolved in water
(e) write the formula of compound formed by this element with chloride and sulphate ​

Answer 1

Answer:

Hey!

Pls refer to the attatched image for answer.

Answer 2

Explanation:

a=sodium

b= sodium has 1 valency and oxygen has 2 valency = Na2O

c= when it burns then sodium oxide form in the presence of air

d=when this oxide

dissolved in water then sodium hydroxide formed (NaOH)