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What is the atomic number and the mass number of an atom of an element with 11 protons and 12 neutrons?
Wiki User
∙ 9y ago
Atomic number: 11
Mass number: 23 (11 protons + 12 neutrons)
Atomic Mass (aka atomic weight): 22.98976928
Element: Sodium (sodium-23 is the only stable sodium isotope)
Wiki User
∙ 9y ago
Wiki User
∙ 14y agoeleven is the atomic number, the number of the protons is always the atomic number :)
Wiki User
∙ 13y agoThe isotope 23Na has 11 protons and 12 neutrons; the atomic number is 11, equal to the number of protons.
Wiki User
∙ 12y ago11. The atomic number is defined as the number of protons per nucleus.
Wiki User
∙ 14y agoIts atomic number is 11 and its mass is 22.99. This atom is a sodium atom.
Wiki User
∙ 10y agoAn atomic number (used in both Physics and Chemistry) is used to describe the number of protons found in a nucleus of an atom. Hence, an atom with 11 protons will have an atomic number of 11.
Wiki User
∙ 12y agoThe atomic number would be 11. An atom's atomic number is always the number of protons it contains.
Anonymous
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How do you calculate the number of neutrons an atom of a specific element has?
First, find its atomic mass on the periodic table and subtract the number of protons (element number) from it and there you go
How are the atomic mass and the atomic number different?
the atomic mass is the number of protons and neutrons in an atom of an element and the atomic number is the number of protons of an atom of an element.
How many protons and neutrons in meitnerium?
Number of neutrons = Atomic mass of an isotope - Atomic number of the element The atomic number of meitnerium is 109. Each isotope of an element has a different number of neutrons. Meitnerium has 109 protons.
How is an atomic number similar to mass number?
The nucleus of an atom consists of protons and neutrons. The number of protons in a particular nucleus is its "atomic number". The total number of protons and neutrons in a particular nucleus is its "mass number".
What is the difference between the mass number and the atomic number of an element?
The difference between the atomic number and the mass number is that the atomic number is the number of protons in the nucleus of an atom of that element. The mass number is the total number of protons and neutrons in the atom.Atomic number = number of protonsMass number = total number of protons + neutrons
Is the atomic weight of an element is equal to the number of protons minus the number of neutrons?
Atomic weight of an element is the number of protons plus neutrons in the nucleus, atomic number is the number of protons only.
What are the number of protons neutrons and electrons in an element?
Number of protons = Number of electrons = Atomic number Number of neutrons = Atomic number - Number of protons
How do you calculate the number of neutrons an atom of a specific element has?
First, find its atomic mass on the periodic table and subtract the number of protons (element number) from it and there you go
An element's atomic mass number is?
It is about neutrons and protons. The total of neutrons and protons.
How many protons and neutrons does an atom have?
The atomic number of a chemical element is equal to the number of electrons or protons. The number of neutrons = Atomic weight of an isotope (rounded) - atomic number of the element (or the number of protons) R
How do you determine the number of protons electrons and neutrons present in an element by identifying its atomic and mass numbers from the periodic table?
Atomic number means number of protons present in an atom. Atomic number= number of protons. mass number = number of neutrons+ number of protons. So if you subtract the number of protons you get neutrons and if you subtract neutrons you get protons. mass number - protons= neutrons Mass number - neutrons = protons.
Protons electrons and neutrons in any given atom?
The atomic number of a chemical element is equal to the number of electrons or protons. The number of neutrons = Atomic weight of an isotope (rounded) - atomic number of the element (or the number of protons)
How are the atomic mass and the atomic number different?
the atomic mass is the number of protons and neutrons in an atom of an element and the atomic number is the number of protons of an atom of an element.
What is the sum of protons and neutrons known as an element?
Sum of protons and neutrons is the Mass number of the element. The number of protons is equal to the number of electrons. Neutrons and protons are sub atomic particles.
How many protons and neutrons in meitnerium?
Number of neutrons = Atomic mass of an isotope - Atomic number of the element The atomic number of meitnerium is 109. Each isotope of an element has a different number of neutrons. Meitnerium has 109 protons.
Is the atomic number of an atom equal to the number of protons or neutrons or electrons in the nucleus?
No, atomic number equals the number of protons.The number of neutrons is NOT specific to an element, and various atoms of the same element can have different numbers of neutrons - these are called isotopes.
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.
