$N\left(atomicno.7\right)$ and $P\left(atomicno.15\right)$ belongs to group 15.
Which of them have more electronegativity? Why?

Q. Question 7
Nitrogen (atomic number 7) and phosphorus (atomic number 15) belong to group 15 of the periodic table. Write the electronic configuration of these two elements. Which of these will be more electronegative? Why?

Q. Nitrogen (atomic number $7$) and phosphorus (atomic number $15$) belong to the group $15$ of the Periodic Table. Write the electronic configuration of these two elements. Which of these will be more electronegative and Why?

Q. In the reaction, $Po\stackrel{-\alpha }{\to }Pb\stackrel{-\beta }{\to }Bi$, if Bi, belongs to group 15, to which Po belongs

Q.

The atomic numbers of three elements A, B and C are given below :

Element Atomic number

A 5

B 7

C 10

(i) Which element belongs to group 18? (ii) Which element belongs to group 15?

(iii) Which element belongs to group 13? (iv) To which, period/periods do these elements belong?

Q. The atomic numbers of three elements A, B and C are given below:

Element	Atomic number
A	5
B	7
C	10

(i) Which element belongs to group 18?
(ii) Which element belongs to group 15?
(iii) Which element belongs to group 13?
(iv) To which period/periods do these elements belong?