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The atomic weight of a molecule is the weight of all the molecules in it combined.
Example: H20
Hydrogen: 1.01
Oxygen: 16.00
2 hydrogens = 2.02 + 16.00 = 18.02 is the atomic weight of water.
Wiki User
∙ 14y ago
Wiki User
∙ 13y agoThe Atomic Mass or weight of an isotope of an element is the total number of protons and neutrons in its nucleus. The number of protons defines which element it is, this is called the atomic number. For uranium for example it is 92, but the atomic weight can be from 233 to 238, and these different versions of uranium are called isotopes.
See Periodic Table for more details of all the elements.
Add the no. of neutrons and the no. of protons to get the atomic mass.
Wiki User
∙ 11y agoThe atomic weight of a chemical element is determined experimentally taking into account the isotopic composition of this element and the atomic masses of these isotopes.
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The chemical properties of an atom are determined by its atomic?
The chemical properties of an atom are determined by the number of protons that are existent in the particular atom. This value is given by the atomic number.
The atomic weight of an element is determined by what?
The atomic number of an element is determined by the number of protons in its nucleus.
What is the number of protons in an atom known as?
It is called the atomic no. of element. It is also equal to the no. of electrons in the atom.
What happens to an atom in terms of atomic mass and weight when it loses one particle?
If an atom looses an electron, neither the atomic mass nor atomic weight change appreciatively. If it looses a proton or neutron, both atomic mass and atomic weight decrease by one and it becomes an atom of a different element (on loss of a proton), or a different isotope of the same element (upon loss of a neutron).
What does one atom of calcium weigh?
It has an atomic weight of 40.08.
Atomic mass of an atom is determined by the weight of?
Protons, neutrons and electrons
Atomic mass of an atom is determined by the combined masses of?
the atomic mass is determined by adding the weight of protons & neutrons
How do you calculate atom with a given mass?
The atomic weight of chemical elements is determined by mass spectrometry.
The chemical properties of an atom are determined by its atomic?
The chemical properties of an atom are determined by the number of protons that are existent in the particular atom. This value is given by the atomic number.
How is the atomic mass determined?
Atomic Mass is the number of protons in an atom plus the number of neutrons in the same atom.
How can an atom's protons be determined?
By the atomic mass
What is the atomic number of an atom determained by the number of what?
The atomic number of an atom is determined by the number of protons it has.
Atomic mass is determined by the number of protons plus the number of?
Atomic mass is determined by the number of protons and neutrons in an atom's nucleus.
The atomic weight of an element is determined by what?
The atomic number of an element is determined by the number of protons in its nucleus.
The atomic number of an atom is determined by the number of?
Protons
Is determined by the number of protons in an atom?
Atomic number.
Is what is determined by the number of protons in an atom?
The Atomic Number
