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What particles make up the mass of an atom?
The number of protons
What do you add to protons to equal mass number?
The mass number = protons + neutrons
What they do mass number?
Mass number is about the neutrons and protons. The total of neutrons and protons.
What are counted in an an atom to determine mass number?
Atomic Mass: protons AND neutrons atomic number: just protons
What particles are used to determined the mass of an atom?
Mass of an atom = mass of protons + mass of neutrons
What is the sum of protons and neutrons in an atom?
Mass number!:)
Sum of protons and neutons?
the mass number
What is the total number of protons and neutron's in an atom called?
mass number = protons + nuetrons
The mass number of an element is equal to the total number of?
The mass number is the average atomic mass of all the isotopes that are found in nature.
Which subatomic particles makes up most of the mass off the atom?
The major contribution to the mass of an atom is from protons and neutrons; electrons have a known but negligible mass.
Is the number of protons the mass?
Not necessarily. An estimated form of atomic mass is protons + neutrons.
What is bigger the atomic mass or atomic number?
Atomic no.=no. of protons Atomic mass=no. of protons+no. of neutrons Hence, atomic mass is greater
