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An Isotope of an element is an atom that has the same number of protons, (number of protons is the defining feature of an element) but different number of neutrons.
Because The mass number is the sum of protons and neutrons, different isotopes have different mass numbers.
Margaretta Emmerich
Wiki User
∙ 16y agoIsotopes are atoms of the same element, therefore, all of the isotopes of a particular element would have the same atomic number, as an element is defined by how many protons it has in it's nucleus. However, isotopes of a particular element will have different mass numbers as it is the difference in the number of neutrons (that have a very slightly greater mass than a proton) in it's nucleus that makes it an isotope. For example, Hydrogen has three isotopes: # Hydrogen contains 1 proton so has an atomic number of 1, and does not have a neutron in it's nucleus so has an Atomic Mass of approximately 1 amu. # Deuterium contains 1 proton (so it is an isotope of hydrogen), and has 1 neutron in it's nucleus so has an atomic mass of approximately 2 amu. # Tritium contains 1 proton (so it is an isotope of hydrogen), and has 2 neutrons in it's nucleus so has an atomic mass of approximately 3 amu. Note that both protons and neutrons contribute to atomic mass, but when determining the atomic number only protons are counted.
Wiki User
∙ 11y agoNo. The atomic mass is simply the number of protons plus the number of neutrons. Since electrons are so much smaller than neutrons and protons, their mass is not added to the mass of the atom. Neutrons and protons are about the same size (I believe they are .0015 amu different).
The isotopes of an element are used to calculate the average mass of an element by multiplying the atomic mass of an isotope by the abundance of that isotope. For example, lets say that Cl (chlorine) has two isotopes, Cl35 and Cl37. Their frequencies are 25% and 75% respectively. If you multiple their atomic masses by their frequencies (35 times .25 + 37 times .75) and add them together, you get 36.5, which would be the average mass of Cl and the number you would see beneath its atomic symbol on the Periodic Table (I don't believe those numbers are accurate, but they get the point across).
Wiki User
∙ 13y agoNo, they have different mass numbers. That is what differentiates them as isotopes.
Wiki User
∙ 15y agoNo. Atomic mass indicates the atom's number of protons. The atomic mass indicates the atom's number of protons and neutrons.
Wiki User
∙ 12y agoNo, the atomic mass is the full complete mass while the mass # is just the whole number. For example: carbon's atomis mass is 12.011 and the mass # is 12.
Wiki User
∙ 12y agoatomic mass is the number of protons in an atom
mass number is the number of protons plus neutrons in an atom
Wiki User
∙ 11y agono, the atomic number consists of the number of protons while the atomic mass consists of the number of neutrons and protons.
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Is the atomic number and atomic mass the same?
No, the atomic number is the amount of protons it has and the weight is its mass
How atomic number better than atomic mass?
No two elements may have the same atomic number. But two elements may have same atomic mass. Hence atomic number is better than atomic mass.
Is atomic mass and atomic number the same thing?
No, Atomic number is the number of protons in an atom. Atomic mass is the number of protons plus the number of neutrons.
The atomic number increases but the atomic mass stays the same?
The atomic number increases but the atomic mass stays the same after the emission of a beta particle by a radioactive atom.
What is the difference between isobar and isotope?
isobars are elements with same mass numbers (Atomic Mass) and different atomic number (number of proton or electron)
Do isotopes have the same atomic number and the same atomic mass?
No: They have the same atomic number but not the same atomic mass.
What is the atom with same atomic number but different mass number?
We can find atomic mass and mass number in chemical elements. Atomic mass is about weight of the atom. Mass number is about total of neutrons and protons.
Is the atomic number and atomic mass the same?
No, the atomic number is the amount of protons it has and the weight is its mass
How atomic number better than atomic mass?
No two elements may have the same atomic number. But two elements may have same atomic mass. Hence atomic number is better than atomic mass.
Is the atomic number the same as atomic mass?
No.
Is atomic mass and atomic number the same thing?
No, Atomic number is the number of protons in an atom. Atomic mass is the number of protons plus the number of neutrons.
The atomic number increases but the atomic mass stays the same?
The atomic number increases but the atomic mass stays the same after the emission of a beta particle by a radioactive atom.
What is the difference between isobar and isotope?
isobars are elements with same mass numbers (Atomic Mass) and different atomic number (number of proton or electron)
What do two different neutral isotopes of the same element have in common nuclear number atomic mass nuclear mass atomic number?
The atomic number is the same for all isotopes.
What is the atomic mass the same as?
The Atomic Mass is equal to the number of protons and electrons that an element has.
Is atomic mass and molar mass similar and mass number of particles the same?
We can find atomic mass and mass number in chemical elements. Atomic mass is about weight of the atom. Mass number is about total of neutrons and protons.
What is silvers atomic mass?
actually the atomic mass is the same as the amount of protons so if you want to be lazy here are the atomic number (in which is 47 also the same as the atomic mass) and the atomic mass 47, and the number of protons 47.
