SSC
CHEMISTRY
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
The atomic mass number is equal to which of the following?
|
|
protons + neutrons
|
|
|
protons + electrons
|
|
|
electrons + neutrons
|
|
|
protons + neutrons + electrons
|
Explanation:
Detailed explanation-1: -The mass number of an atom is equal to the number of protons plus the number of neutrons that it contains.
Detailed explanation-2: -atomic number, the number of a chemical element in the periodic system, whereby the elements are arranged in order of increasing number of protons in the nucleus. Accordingly, the number of protons, which is always equal to the number of electrons in the neutral atom, is also the atomic number.
There is 1 question to complete.