Which of the following letter does not represent in periodic table?

Which of the following letter does not represent in periodic table?

وقتا فوقتا ٹیبل میں مندرجہ ذیل میں سے کون سا خط نمائندگی نہیں کرتا ہے؟
Explanation
  • The letter J is not used as a symbol for any element in the periodic table.
  • N, K, and X are used in element symbols, such as N (Nitrogen) and K (Potassium).