SSC
CHEMISTRY
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
An element with a mass number of 11 and an atomic number of 5 has how many neutrons?
|
|
11
|
|
|
5
|
|
|
6
|
|
|
16
|
Explanation:
Detailed explanation-1: -1 Expert Answer Boron having an atomic number of 5 means that it will have 5 protons. 11 atomic mass units in total. Neutrons also have a atomic mass unit of 1. So there are 6 neutrons.
Detailed explanation-2: -Boron as 5 protons and 6 neutrons in its nucleus giving it an Atomic Number of 5 and an atomic mass of 11. Boron is in Period 2 of the Periodic Table because it has 2 electron shells.
There is 1 question to complete.