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The atomic number tells us the number of protons in the nucleus of an atom. The Atomic Mass tells us the sum of the protons and neutrons in a nucleus.
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.
Wiki User
∙ 13y ago
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.
Wiki User
∙ 14y agoAtomic weight is used to calculate the number of neutrons in an atom of an element. The number of neutrons is equal to the atomic weight minus the atomic number (the number of protons).
The atomic mass of an element is also a weighted average of all of the masses of all of the isotopes of that element.
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What three things does the atomic number of an element tell us?
It tells us that:How many protons the atom hasHow many electrons the atom has (when it is in non-excited, ground state)It identifies the element itself
What does a mass spectrometer tell us in an atom or an element?
The relative atomic weight or standard 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.
What does the atomic number 6 tell you about carbon?
The atomic number 6 indicates that carbon has 6 protons in its nucleus, which defines it as an element. It also tells us that carbon has 6 electrons in its neutral state.
What does the number of protons in an atom also tell you?
The number of protons in the nucleus of an atom tell you which element you are dealing with. It is the number of protons in an atomic nucleus that determines the elemental identity. Only that. The atomic number of an element is the number of protons you will find in the nucleus of every atom of that element, regardless of the number of neutrons or electrons involved.
What does the number of protons of an atom indicate on the periodic table?
The number of protons in an atom determines its atomic number, which is the unique identifier of an element on the periodic table. Each element has a specific number of protons in its nucleus, and this number dictates the element's chemical properties and its position on the periodic table.
What does the atomic number tell us about an element?
The atomic number is the number of protons in the nucleus.The Atomic Number of an element helps us to locate that particuarler element on the Periodic Table of Elements.
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 the atomic number tell us about calcium?
Calcium is a metal element. Atomic number of it is 20.
What does the atomic number number tell us about an elements?
The atomic number is the number of protons in the nucleus.The Atomic Number of an element helps us to locate that particuarler element on the Periodic Table of Elements.
What are the word to be used to fill these empty spaces an element's atomic ----- tells us how ----- each atom is?
what are the word to be used to fill these empty spaces an element's atomic tell us how each atom is
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 atomic mass number tell us?
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.
What does the atomic number tell us about an atoms?
Atomic number, being a characteristic property (property that is diff. for each element), it identifies the element, For instance, Oxygen has an atomic number of 8, and it's the only one that has that atomic number, same with any other element, except that no other element has an atomic # of 8. No two elements can share an atomic number.
What does an element's atomic number tell us?
An element's atomic number tells us the number of protons in an atom of that element. It is used to uniquely identify the element and determine its placement on the periodic table. The atomic number also corresponds to the number of electrons in a neutral atom of that 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 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 are the atomic numbers and atomic mass?
Atomic Number :- atomic number of an element is the number of protons present in the nucleus of the atom. (since atoms are electrically neutral the number of protons in an atom is equal to the number of electrons in an atom) Atomic Mass :- atomic mass of an element is the number which tells us how many times an atom of that element is heavier than an atom of hydrogen (whose atomic weight is taken as unity [1])
