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Close; Mass # is the number of protons + the number of neutrons.

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12y ago
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4mo ago

No, the mass number of an element represents the total number of protons and neutrons in its nucleus. To find the number of protons, you would look at the element's atomic number, which is the smaller number on the element's symbol.

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9y ago

Not completely, the Atomic Mass also includes the number of neutrons and the mass equivalent of the binding energy.

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9y ago

Protons does determine atomic number. atomic number equals to protons. how many protons in a single atom.

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12y ago

No, the atomic number tells you the number of protons. The mass number tells you the number of nucleons (protons + neutrons).

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7y ago

Yes, these numbers are equal.

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Q: Does an element's mass number tells the number of protons in its nucleus?
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Related questions

What does an elements atomic number?

The Atomic number tells you the number of protons in the nucleus of atoms of that element.


What number in the nucleus makes the elements unique?

That would be the Atomic number. It tells you how many protons are contained in the nucleus of an atom. No two elements could share this 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 tells the number of protons in the nucleus of every atom of every atom of an element?

The number of protons is also the same as the atomic number.


Why is an element's number important?

An elements atomic number is important because it tells you how many protons are in the nucleus of the atom, and how many electrons are orbiting the nucleus in the ground state.


The atomic number tells you the number?

The atomic number tells you the number of protons in an atom's nucleus. It also determines the element's identity on the periodic table.


What identifies the atom tells the number of protons in the nucleus?

The atomic number


What characteristic of an element tells the number of protons in its nucleus?

Its atomic number.


In a neutral atom the atomic number tells us the numbers of protons and?

In a neutral atom, the atomic number tells us the number of protons in the nucleus. Since the atom is neutral, the number of protons is equal to the number of electrons orbiting the nucleus.


What tells you how many protons in a nucleus of an atom?

atomic number


What does the atomis number tell you?

The atomic number tells you the number of protons in an atom's nucleus. It also determines the element's identity, as each element has a unique atomic number.


The atomic number of an atom indicates the number of?

The atomic number is the number of protons in the atom. In the case of a neutral atom (as opposed to an ion), the atomic number is also equal to the total number of electrons.