Courses
Courses for Kids
Free study material
Offline Centres
More
Store

# How to calculate the number of electrons?

Last updated date: 13th Jul 2024
Total views: 346.5k
Views today: 8.46k
Verified
346.5k+ views
Hint: Before answering this question, we should know that the atomic number is given by the total number of protons present in the nucleus of an atom. It is represented by Z. The element has atoms that consist of the same number of protons and have the same atomic number. Different elements have atoms that have the same atomic number. For example, The atomic number of carbon is 6 whereas the atomic number of oxygen is 8.

The outermost subatomic particle of an atom is known as an electron. These electrons are negatively charged in nature and they revolve around the nucleus in an atomic orbit. These outer electrons are also termed as valence electrons of an element. Now, looking into the inner side of the nucleus where most of an element lies, that is protons and neutrons. Protons are stable and positively charged subatomic particles whereas neutrons possess neutral charge. Protons and neutrons have almost the same mass i.e $1.67\times {{10}^{-24}}$grams whereas electrons have much lesser mass compared to protons and neutrons i.e $9.1\times {{10}^{-28}}$.