SSC
CHEMISTRY
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
The atomic mass of an element is equal to
|
|
the number of protons and electrons
|
|
|
the number of protons and neutrons
|
|
|
the number of electrons and neutrons
|
|
|
None of the above
|
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. In other words, the number of neutrons in any atom is its mass number minus its atomic number. Although all atoms of a given element must have the same atomic number, they need not all have the same mass number.
Detailed explanation-2: -The atomic number is the number of protons in an element, while the mass number is the number of protons plus the number of neutrons.
Detailed explanation-3: -Atomic mass of an element is equal to the sum of proton and neutrons.
There is 1 question to complete.