Question

The atomic no. of clorine is 17 and mass no is 35 what would be the atomic no in a cl^-

Answer 1

Answer:

17

Explanation:

Atomic number is specifically the number of protons in any ion or either number of protons or electrons in a neutral atom. Since Cl- is an ion, but the number of protons are still 17 irrespective of the number of electrons. So the atomic number would be 17.