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Is the sum of the numbers of protons and the number neutrons in an atom is the mass number?
Wiki User
∙ 11y ago
It is the mass number for that particular form of the atom - that particular isotope. An element can exist as more than one isotope and the atom's mass number is the (weighted) average of the mass numbers of all its isotopes.
Wiki User
∙ 11y ago
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What do you have when you subtract the atomic no from atomic mass?
Atomic number is number of protons in an atom while atomic mass is the sum of protons and neutrons in an atom when you subtract you will get the number of neutrons in an atom.
Atomic mass equals the number of what?
The atomic mass NUMBER equals the number of protons and neutrons in an atom. DO NOT confuse this with the mass of an atom.
What is the number of protons plus the number of neutrons in an atom always a whole number?
The two are counts and so natural numbers. The set of natural numbers is closed under addition.
How do you get atomic mass?
Atomic mass is found by adding together the individual masses of the numbers of protons, neutrons, and electrons in the atom.--> Atomic Mass = protons + neutrons
Why are all atomic numbers whole numbers?
The atomic number is the number of protons.
Atom does not have to have equal numbers of protons and?
neutrons in order to be stable. The number of protons determines the element's identity, while the stability of the nucleus is influenced by the balance of protons and neutrons. Isotopes can have different numbers of neutrons while maintaining the same number of protons.
What makes an atoms mass number?
An atom's mass number is determined by the sum of its protons and neutrons. Protons have a positive charge and determine the element's identity, while neutrons help stabilize the nucleus and contribute to the atom's mass.
What is an atom's mass number?
An atom's mass number is the total number of protons and neutrons in its nucleus. It is used to identify isotopes of an element since isotopes of the same element have the same number of protons but different numbers of neutrons.
Why atomic mass is different from the mass numbers?
atomic mass is the number of protons in an atom mass number is the number of protons plus neutrons in an atom
An isotope is identified by its atomic mass number which is the total number of?
protons and neutrons in the nucleus of an atom. Isotopes of an element have the same number of protons but different numbers of neutrons. The number of neutrons in an atom affects its stability and often determines its nuclear properties.
What mass number is calculated by adding the numbers?
the mass number of an atom is the number of protons in an atom, plus the number of neutrons.
An atom with 55 protons and 76 neutrons?
This atom would be a specific isotope of cesium, with an atomic number of 55. Its mass number, which is the sum of protons and neutrons (55 + 76), would be 131.
What is the sum of protons and neutrons in an atom?
Mass number!:)
How many protons and neutrons are there in the nucleus of an atom that has an atomic number of 84 and a mass number of 210?
The atom has 84 protons (atomic number) and 126 neutrons (mass number - atomic number).
What is the atomic mass of a atom?
The atomic mass of an atom is the total mass of protons, neutrons, and electrons in the atom, measured in atomic mass units (amu). It is approximately equal to the sum of the number of protons and neutrons in the atom's nucleus.
Is the atomic number of an atom equal to the number of protons or neutrons or electrons in the nucleus?
The atomic number of an atom is equal to the number of protons in the nucleus. It determines the element's identity and position on the periodic table. Electrons and neutrons can vary in number to form different isotopes of the element.
The mass number of an atom indicates the number of what?
The mass number of an atom indicates the total number of protons and neutrons in the atom's nucleus.
