Question

Element m with electronic configuration 2,8,1 combines seperatly with nitrate ions, sulphate ions, phosphate ions write the formula of three components to which group and period of mordern periodic table does the element m belong? will m form ionic bond (or) covalent compound?​

Answer 1

1) mNo3

2) m2SO4

3 )mPO4

4 m belongs to group 1 and period 3

5)m will form ionic bond

Answer 2

Answer:

Element m is Na i.e sodium

Explanation:

Given, E.C=2,8,1(11)

m=Na

• The formula of the three compounds which it reacts with will be Na2SO4, NaNO3, Na3P.

• by the electronic configuration, we can conclude that the,

• the period number is henceforth, 3 since no of shells are three.

• the group number is 1 as the no. of electrons in the outermost shell is 1.