0
No,
The Atomic Mass is the number of protons plus the number of neutrons (the mass of the atom's nucleus).
Note that the atomic mass is therefore different in cases where there are different isotopes of the element (because the nucleus will have a different number of neutrons for each isotope).
The atomic number is the number of protons (or electrons in the atom's neutral state).
Wiki User
∙ 14y ago
Wiki User
∙ 12y agoThat is correct, but bear in mind that the atomic weight reported on the Periodic Table is an average weight, since elements have more than one isotope and therefore not all atoms of a given element have the same number of neutrons.
Wiki User
∙ 13y agoThe atomic number is the number of protons. The atomic mass is the the mass of the neutrons and protons combined.
Wiki User
∙ 12y agoNo,
The mass number is the number of neutrons plus the number of protons.
the atomic number is the same as the number of protons/electrons
Wiki User
∙ 13y agoNo; it's the number of protons plus the number of neutrons!
Wiki User
∙ 6y agoYes, it is correct.
Wiki User
∙ 11y agoYes it is
Add your answer:
Earn +20 pts
What is the sum of protons and neutrons in an atom?
Mass number!:)
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.
How do you determine the number of protons electrons and neutrons present in an element by identifying its atomic and mass numbers from the periodic table?
Atomic number means number of protons present in an atom. Atomic number= number of protons. mass number = number of neutrons+ number of protons. So if you subtract the number of protons you get neutrons and if you subtract neutrons you get protons. mass number - protons= neutrons Mass number - neutrons = protons.
The mass number of an atom indicates the number of what?
The mass number is the sum of protons + neutrons.
The combined number of protons and neutrons?
Number protons + number neutrons is called the mass number or the atomic mass.
What they do mass number?
Mass number is about the neutrons and protons. The total of neutrons and protons.
What is the sum of protons and neutrons in an atom?
Mass number!:)
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.
What particles make up the mass of an atom?
The number of protons
How do you determine the number of protons electrons and neutrons present in an element by identifying its atomic and mass numbers from the periodic table?
Atomic number means number of protons present in an atom. Atomic number= number of protons. mass number = number of neutrons+ number of protons. So if you subtract the number of protons you get neutrons and if you subtract neutrons you get protons. mass number - protons= neutrons Mass number - neutrons = protons.
The mass number of an atom indicates the number of what?
The mass number is the sum of protons + neutrons.
What number is the atomic mass equal to?
Atomic mass is the number of protons and neutrons in an atom.
How do the numbers of protons, number of neutrons, and the mass number related?
mass no. = no. of protons + no. of neutrons
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.
Why can you subtract the atomic number from the atomic mass and get the number of neutrons?
Not the atomic mass but the mass number (of course, these values are similar - not identical).The mass number is the sum between the number of protons and the number of neutrons. As a consequence:Number of neutrons for an isotope = Mass number - Number of protonsThe number of protons is equal to the atomic number.
The combined number of protons and neutrons?
Number protons + number neutrons is called the mass number or the atomic mass.
How many neutrons are contained in an iodine nucleus with a mass number of 132 and an atomic number of 53?
79; the mass number is the sum of the protons and neutrons, and the atomic number is the number of protons. So if you take the mass number (protons + neutrons) minus the atomic number (protons), you get the number of neutrons.
