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What is the number of neutrons plus protons in the nucleus of an atom is called?
Wiki User
∙ 6y ago
For example, Lithium has 3 protons and 4 neutrons in its nucleus. It's mass number is 7 (3+4). The mass number usually goes in front of the atomic symbol and in superscript, such as 7Li.
The answer is not Atomic Mass or atomic weight. Although atomic mass and atomic weight are slightly different measures, they both describe averages. To determine the total number of nucleons in an atom, you need to isolate a specific isotope and add together the number of protons and neutrons.
See the Related Questions below for how to find the number of protons, neutrons and electrons in any atom.
Wiki User
∙ 12y ago
Anonymous
Wiki User
∙ 12y agoThe sum of the number of protons and neutrons in the atomic nucleus is called the "mass number".
For example, Lithium has 3 protons and 4 neutrons in its nucleus. It's mass number is 7 (3+4). The mass number usually goes in front of the atomic symbol and in superscript, such as 7Li.
The protons and neutrons, which are called nucleons when they are talked about as the components of an atomic nucleus, add up to make the atomic mass of an atom. Strictly speaking, the electrons are included, but they weigh next to nothing, being about 1/1836th the mass of a proton. That lets us use as the atomic mass the number of nucleons in the nucleus of the atom.
If all of the atomic masses of atoms of a given element are averaged, the result is the element's atomic weight. These terms are often confused and thus special care must be taken when using them.
Wiki User
∙ 14y agoThe number of protons plus the neutron number is called the atomic mass or "mass number".
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∙ 9y agoThe total of the protons and neutrons of an atom is also known as nucleons. It is similar in isobars. In fact, numerically, it is also the molecular mass of that atom as well.
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∙ 9y agoTotal number of protons and neutrons is called atomic mass.This is the total mass of atom.
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∙ 6y agoThe total mumber is called mass number.
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∙ 12y agoAtomic mass number.
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∙ 11y agoatomic mass number
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∙ 16y agomass number
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The number of neutrons plus protons in the nucleus of an atom-?
nass number is the number of neutrons plus protons in the nucleus of an atom
Protons and neutrons in the nucleus add up to give the?
The number of protons added to the number of neutrons in a nucleus give that isotope's atomic weight.
Is this statement correct atoms are made up of nucleus and electrons composed of protons whose number is called the atomic number and neutrons whose numbers added together make the mass number?
It's close, but an atom is made of a nucleus and electrons. The nucleus is made of protons and neutrons. The number of protons equals the atomic number of the element, and the atomic mass is the number of protons plus neutrons.
How many protons are in a lithium nucleus?
The atomic number of lithium is 3. Therefor there are 3 protons and neutron in the nucleus of lithium. Lithium also has 4 neutrons. atomic # = protons and neutrons neutrons = rounded atomic mass - atomic number Sources- 7th grade Acc. Science
How are electrons protons and neutrons positioned within an atom?
Electrons are on the outside rings of an atom. neutrons and protons are together in the nucleus of the atom. There is always the same number of protons and electrons in an atom, equal to the atomic number of the element. The amount of neutrons varies, even between atoms of the same number, these varieties of an element are called isotopes. If the amount of protons and electrons varies, it is called an ion, and the chemical number is still equal to the amount of protons.
Total number of particles in the nucleus is called what?
There are two types of particles in the nucleus of an atom, which are the Protons and the Neutrons. The number of particles in the nucleus depends what is the element. For example, Oxygen has 8 protons and 8 neutrons in the nucleus and Phosphorus has 15 protons and 16 neutrons in the nucleus.
What is the sum of the protons and the neutrons in a nucleus called?
Mass number
The number of neutrons plus protons in the nucleus of an atom-?
nass number is the number of neutrons plus protons in the nucleus of an atom
What is the number of protons in the nucleus of an atoms atomic?
The sum of protons and neutrons in the atomic nucleus is called "mass number"; this value is different for each isotope.
The sum of the numberof protons and nuetrons in the nucleus of an atom?
The sum of the number of the protons and neutrons in the nucleus of an atom is called as atomic mass.
What is the mass number minus the atomic number called?
Nucleon Number (total number of protons and neutrons)
Does a nucleus have the same number of protons and electrons?
The nucleus of an atom contains only protons and neutrons; there are never any electrons in the nucleus. The number of neutrons is generally equal to or greater than the number of protons.
Protons and neutrons in the nucleus add up to give the?
The number of protons added to the number of neutrons in a nucleus give that isotope's atomic weight.
Is this statement correct atoms are made up of nucleus and electrons composed of protons whose number is called the atomic number and neutrons whose numbers added together make the mass number?
It's close, but an atom is made of a nucleus and electrons. The nucleus is made of protons and neutrons. The number of protons equals the atomic number of the element, and the atomic mass is the number of protons plus neutrons.
How is the nucleus related to the periodic table?
The nucleus contains the protons and neutrons. The number of protons determines the atomic number of the element and the number of protons and the number of neutrons together determine the atomic mass.
How many neutrons are usually found in sulfurs nucleus?
The mass number indicates the number of protons AND neutrons in the nucleus. Since the number of neutrons can vary, so can the mass number. The different versions of elements based on the number of neutrons are called isotopes. Sulfur-35 has an atomic mass of 35. So, it has a total of 35 protons and neutrons in the nucleus. Since sulfur always has 16 protons, then the number of neutrons in this isotope is 19. (35 - 16 = 19)
What do isotopes and nucleus have in common?
All the isotopes of a chemical element have the same atomic number, number of protons and number of neutrons.
