The atomic mass number of an element is qquad | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(C) The atomic mass number $(A)$ is defined as the sum of the number of protons $(Z)$ and the number of neutrons $(N)$ in the nucleus,so $A = Z + N$.S

Vedclass · Accepted Answer

equal to or greater than its atomic number

Vedclass · Answer

(C) The atomic mass number $(A)$ is defined as the sum of the number of protons $(Z)$ and the number of neutrons $(N)$ in the nucleus,so $A = Z + N$.Since the number of neutrons $(N)$ is always greater than or equal to zero,the atomic mass number $(A)$ must be greater than or equal to the atomic number $(Z)$.For the simplest element,Hydrogen $(_{1}^{1}H)$,the number of neutrons is $0$,so $A = Z = 1$.For all other elements,the number of neutrons is greater than zero,making $A > Z$.Therefore,the atomic mass number is always equal to or greater than the atomic number.

The atomic mass number of an element is $\qquad$ .

Similar Questions

The coordination number of $Cu$ is

The radius of the nucleus of an atom whose mass number is $125$ is:

$A$ neutrino is a particle,which is

The ratio of the nuclear radii of the gold isotope ${}_{79}^{197}Au$ and the silver isotope ${}_{47}^{107}Ag$ is $ . . . . . . $.

An atom of mass number $15$ and atomic number $7$ captures an $\alpha$-particle and then emits a proton. The mass number and atomic number of the resulting product will respectively be

Vedclass Test Series

Exam Paper Generator

Online Exam Module