Chemistry · Periodic trends in properties of elements: atomic and ionic radii, ionization enthalpy, electron gain enthalpy, valence, oxidation states and chemical reactivity
Identify the position of the elements having outer electronic configuration for
Identify the position of the elements having outer electronic configuration \( n s^{2} n p^{5} \) for \( n=3 \)
- A. 17 th group, 3rd period
- B. 8th group, sth period
- C. 7th group, 5th period
- D. 8th group, 4th period
Step-by-step solution
The outer electronic configuration ns^2 np^5 indicates the element is in group 17 (halogens) of the p-block. For n=3, the element is in the third period. Thus, the position is 17th group, 3rd period.