60 Likes
The Atomic Number (Z) of Na = 11
The Mass Number (A) of Na = 23
Number of Neutrons = A - Z = 23 - 11 = 12
Its atomic model is shown below:
Answered By
40 Likes
Name the three constituents of an atom and state mass and charge of each. How are they distributed in an atom?
Define the following terms —
(a) atomic number and (b) mass number.
What are isotopes? Give one example.
What are isobars? Give one example.
