What is the atomic no. Of the element present in the third period and seventeenth group in the periodic table?
Answers
Answered by
0
17 is the atomic.no. of chlorine
Answered by
2
Answer:
General configuration for seventeenth group elements is ns^2np^5. In the third period, the principal quantum number for valance shell for the given elements is 3s^2,3p^5. Third period starts from atomic number, Z = 11 and end at Z = 18. Hence, the atomic number of the given element is 10+7=17.
Similar questions