Foundation
Chemistry Foundation
Atomic and Molecular Mass
Question

An element has atomic weight  W and atomic number N.The number of protons in the nucleus of its atom is :

W – N 

W

W + N 

N

JEE Advance
College PredictorLive

Know your College Admission Chances Based on your Rank/Percentile, Category and Home State.

Get your JEE Main Personalised Report with Top Predicted Colleges in JoSA

Solution

Number of proton = Atomic number