atomic weight define
Answers
Answer:
The total weight of an atom is called the atomic weight. It is approximately equal to the number of protons and neutrons, with a little extra added by the electrons. The stability of the nucleus, and hence the atom's radioactivity, is heavily dependent upon the number of neutrons it contains.
Explanation:
Hope it help.
Answer:
The atomic weight of an element is the ratio of average mass of an atom of an element to 1/12 of mass of an atom of C-12 Isotope.
This is the answer according to NCERT and other books.
A more practical answer will be the weight of the nucleus of atom = weight of protons + weight of neutrons in the nucleus.
Eg: Carbon= 6 neutrons + 6 protons = 12 atomic mass units
as the weight on one neutron is equal to the proton being one atomic mass unit