What information does the formula N 14 7 for the nitrogen nucleus give you about this nucleus?

The symbol N 14 7 Indicates that the nucleus of nitrogen has 7 protons and 14 - 7 = 7 neutrons and together, they have mass of 14 a m u It also gives information about the size of nitrogen nucleus The radius of a nucleus is given by the formula R = R 0 A 1 3 where R 0 is an empirical constant having value= 1 . 2 × 10 - 15 m and A = mass number. Putting the values, the radius of nitrogen nucleus = 1 . 2 × 10 - 15 × 14 1 3 = 2 . 89 fermi

What do Cl 35 17 and Cl 37 17 represent?

Comparing with the standard symbol of an element X A Z where Z = atomic number and A = mass number The Symbols Cl 35 17 represents the chlorine nucleus having 17 protons (atomic number) and 35 - 17 = 18 neutrons and 35 amu is the atomic weight (mass number) Similarly, the symbol Cl 37 17 Represents a chlorine element with mass number 37 and number of neutrons as 37 - 17 = 20 . and atomic weight as 37 amu . These two elements have same atomic number but different masses, hence these are isotopes of chlorine.