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The Atomic Mass number tells us the total number of protons and neutrons in an atom's nucleus. It is used to determine the mass of an atom and is necessary for calculating the atomic weight of an element.
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What does an element's mass number tell us?
An element's mass number tells us the total number of protons and neutrons in its nucleus. It helps to determine the element's atomic mass and differentiate it from other isotopes of the same element.
What does atomic mass tell us?
Atomic mass tells us the average mass of an atom of a specific element, taking into account the different isotopes and their abundance. It is measured in atomic mass units (u) and is useful for calculating the number of atoms in a sample based on its weight.
What does the atomic mass or mass number tell you about an atom?
As a first approximation it tells us simply the total number of protons and neutrons in the nucleus. The electrons and binding energy of the nucleus contribute a very much smaller amount to the mass. Since the number of protons in a given element is constant (the atomic number), we can also tell the number of neutrons in an atom by subtracting the atomic number from the atomic mass (approximately). Since different isotopes of each element have different numbers of neutrons (but the same number of protons), they will have different atomic masses. The given atomic weight for a particular element is usually based on the relative abundance of the isotopes as they occur in nature. It is also true that elements with very high elemental weights tend to be unstable, that is, radioactive. (Referring to the Wikipedia entry on "atomic mass" I see that what I have defined here may include some of the sense of "atomic weight", however the difference is subtle. See that entry for further clarification.)
What does the atomic mass and number tell you about an atom?
The atomic weight (not mass) of a chemical element is the ratio between the average mass of the atoms of this element to 1/12 from the Atomic Mass of carbon-12.The atomic mass is a term applied only to specific isotopes; the unit is the same as above. Is a value denoting the total mass of all the protons, neutrons, and electrons in an isotope.The mass number tells us the number (the sum) of protons and neutrons in the nucleus of an atom.The atomic number, on the other hand, tells us how many protons are in the nucleus of an atom.IUPAC publish periodically tables of atomic weights - the last edition is from 2009-2010.For the atomic masses of isotopes the last published edition is The AME 2003 atomic mass evaluation, edited by Audi, Wapstra and Thibault.
If the number of charged and uncharged particles in the center of an atom are 7 and 8 respectively.What is the mass number of the atom?
The charged particles would be protons (+) and would have a mass of 7 ( which would also tell you its atomic number, making this element Nitrogen). If the uncharged particles are eight in number and like protons have a value of one, 7 + 8 = 15 for atomic mass. Since the actual atomic mass of N is 14.007, the difference in mass tells us that we are talking about an isotope of N.
What does the atomic mass tell us?
it tells us that the number is equal to the number of protons plus the number of nuetrons in the nucleus of an atom
What does an element's mass number tell us?
An element's mass number tells us the total number of protons and neutrons in its nucleus. It helps to determine the element's atomic mass and differentiate it from other isotopes of the same element.
What does an element's atomic mass tell us about the atoms that make up that element?
atomic mass is the no. of protons+no. of nuetron
What does atomic mass tell us?
Atomic mass tells us the average mass of an atom of a specific element, taking into account the different isotopes and their abundance. It is measured in atomic mass units (u) and is useful for calculating the number of atoms in a sample based on its weight.
What does the atomic number tell us and where is it?
up there
What is the number of neutrons from a mass number of 10?
Need the atomic number - that would tell us the number of protons and from there the number of neutrons can be calculated. The question as posed does not have enough information to answer.
What do the atomic and mass number of an atom tell us?
The atomic weight (not mass) of a chemical element is the ratio between the average mass of the atoms of this element to 1/12 from the atomic mass of carbon-12.The atomic mass is a term applied only to specific isotopes; the unit is the same as above. Is a value denoting the total mass of all the protons, neutrons, and electrons in an isotope.The mass number is the sum of nucleons (protons and neutrons) in the atomic nucleus.
What does the atomic number tell us about calcium?
Calcium is a metal element. Atomic number of it is 20.
What does the atomic weight of an element tell us about it?
The atomic weight of an element tells us the average mass of an atom of that element compared to the mass of a hydrogen atom. It is a fundamental property of an element that helps in determining its chemical behavior and how it interacts with other elements.
What does the relative atomic mass of an element tell us about the relative abundance of an isotope?
None. The relative abundance of isotopes is used to calculate the Average Mass (by multiplying the Atomic Mass of the isotopes by their relative abundancies and adding the products together) while the Atomic Mass is simply the number of protons plus the number of neutrons.
What does the atomic mass or mass number tell you about an atom?
As a first approximation it tells us simply the total number of protons and neutrons in the nucleus. The electrons and binding energy of the nucleus contribute a very much smaller amount to the mass. Since the number of protons in a given element is constant (the atomic number), we can also tell the number of neutrons in an atom by subtracting the atomic number from the atomic mass (approximately). Since different isotopes of each element have different numbers of neutrons (but the same number of protons), they will have different atomic masses. The given atomic weight for a particular element is usually based on the relative abundance of the isotopes as they occur in nature. It is also true that elements with very high elemental weights tend to be unstable, that is, radioactive. (Referring to the Wikipedia entry on "atomic mass" I see that what I have defined here may include some of the sense of "atomic weight", however the difference is subtle. See that entry for further clarification.)
What dose the atomic number tell us?
the # of protons
