Question

what is the mass no. of Argon

Answer 1

Explanation:

Mass numbers of typical isotopes of Argon are 36; 38; 40. The total number of neutrons in the nucleus of an atom is called the neutron number of the atom and is given the symbol N. Neutron number plus atomic number equals atomic mass number: N+Z=A.

Answer 2

Answer:

39.948 u

Explanation:

Together, the number of protons and the number of neutrons determine an element's mass number: mass number = protons + neutrons. If you want to calculate how many neutrons an atom has, you can simply subtract the number of protons, or atomic number, from the mass number.