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The atomic number is the number of protons in the nucleus of an atom, while the Atomic Mass is the total mass of the nucleus (both protons and neutrons)

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14y ago
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9y ago

All atoms have an appropriate atomic number. An atomic number can be determined by counting how many protons are inside of the atoms' nucleus.

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12y ago

The atomic number of an element is determined by the number of protons in an element.

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the number of protons

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Q: What determines the atomic number of a substance?
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Continue Learning about General Science

What does the density of a substance determine?

It determines the mass of the substance per unit volume.


What does the number at the upper left corner of each element represent?

That is the element's mean atomic mass. It's the average atomic mass of the element as found in nature, taking into account how abundant each isotope of the element is in nature. The number of protons in an atom determines what element it is, but not all atoms of many elements have the same number of neutrons in nature. The total number of protons and neutrons determines which isotope of the element it is, and almost all of an atom's mass is in its protons and neutrons. Atomic mass is measured in atomic mass units (amu). One atomic mass unit is equal to one twelfth of the mass of a carbon-12 atom in its ground state. That is approximately 1.660539 yoctograms (a yoctogram is a trillionth of a trillionth of a gram).


What characteristics must a substance have in order to be classified as an element?

Each element has a specific number of protons in the nuclei of its atoms. This number is known as the atomic number for the element. For instance, the atomic number of hydrogen is one because it has a just one proton in its nucleus. The atomic number of oxygen is eight, again because it has eight protons in its nucleus. For a full summary see the link for the periodic table.


What is the atomic number of the nucleus?

The atomic number is the number of protons in a nucleus.


Every element has its own atomic number the atomic number is the number of what?

the atomic number represents the number of protons in an elements atoms

Related questions

What is the positive subatomic particle that determines the atomic number of a substance?

proton


How strongly a substances particles attract one another is what determines the substances?

The number of protons (aka atomic number) determines the element or substance.


The atomic number determines the what?

The number of protons.


It is the number of that determines the atomic number?

The atomic number is the number of protons in an atom.


What determines the electron-group geometry of a molecule?

Electronegativity of each atom is what determines the electron distribution of a bond. The electronegativity of an atom affects its distance in its valence electrons and its atomic number.


What is the number of protons in one atom of an element determines the atom?

The number of protons determines the element's atomic number. When combined with the number of neutrons, it determines the element's atomic mass.


The number of protons is an atom determines its what?

Atomic Number


Does an element have the same number of protons and atomic number?

Yes. The number of protons is what determines atomic number.


What the atomic number determines?

The atomic number is equal to the number of protons in a chemical element.


Which of the following determines the identity of an element atomic number mass number atomic mass or overall change?

atomic number


What determines an attoms atomic number?

The number of protons.


What does the atomic number determmine?

Atomic number is the number of protons in the nuclei of the atoms of an element. It is the number of protons that determines the atomic number. In a neutral atom, the number of electrons equals the number of protons. So in a way you could say that atomic number determines the number of electrons in a neutral atom.