5 billion atom KMc for protons and 4 trillion atom KMc for nuetrons Proton: 5 billion KMc Nuetron: 4 trillion KMc
mass number = protons + nuetrons
protons and nuetrons
The mass number
== The equation of atomic mass is protons+nuetrons== atomic mass. ===
mass number = protons + nuetrons
Mass number will help you. Mass number is the total of neutrons and protons.
Protons and neutrons have about the same mass, but electrons are much, much lighter.
mass number
The Mass Number.
To calculate the atomic mass of an element, add up the mass of protons and nuetrons.
no. of protons+no. of nuetrons in an atom is known as mass no. of that atom.while no . of protons present in an atom is called its atomic no.thus, in 1st condition we consider both, no. of protons as well as no. of nuetrons and in the 2nd condition we just consider no. of protons.
most of the time there are two but if you have a positively charged atom there are just more protons than electrons or neutrons MASS IS ALWAYS PROTONS PLUS NUETRONS SO IF YOU KNOW THE MASS # AND THE NUETRON # AND SUBTRACT NUETRONS FROM MASS YOU GET THE PROTON # ALSO THE PROTON # = TO THE ELECTRON # AND THE ATOMIC #