Question

The atomic number of an element is 35 and mass number is 81 . The number of electrons in the outer most shell is?

Answer 1

Answer:

35 i think.............

Answer 2

Answer:

Explanation:

An element with mass number 81 contains 31.7% more neutrons as compared to protons. Assign the atomic symbol. Hence, the number of protons in the element i.e., x is 35. Since the atomic number of an atom is defined as the number of protons present in its nucleus, the atomic number of the given element is 35.