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How many neutrons are present in an atom that has an atomic number of 62 and a mass number of 151?
Wiki User
∙ 15y ago
The atomic number refers to the number of protons in the nucleus. This is what dictates the atom's chemical properties. One proton, hydrogen. Two protons, helium, and so on. The mass number is the sum of protons and neutrons combined.
Therefore, the number of neutrons in an atom of samarium (62 Sm 151) is the difference: 89 Samarium 151 is not stable, incidentally. It has a half life of 90 years, decaying by beta particle emission. What happens (essentially) is that one of those neutrons splits into a proton/electron pair. The electron is ejected from the nucleus. The atomic number goes up by one, but the mass remains the same. 62 Sm 151 transmutes into 63 Eu 151 (europium), which is a stable rare earth element.
Wiki User
∙ 15y ago
The atomic number (Z) is 62, indicating 62 protons in the nucleus. The mass number (A) is 151, which is the sum of protons and neutrons. Therefore, the number of neutrons present would be 151 (mass number) - 62 (protons) = 89 neutrons.
Wiki User
∙ 14y agoWiki User
∙ 13y agoA Nickel atom (Ni) has a mass number of 61. How many neutrons does the atom have?
.
Wiki User
∙ 9y agoThe isotope of lead - Pb-210 has 82 protons and 128 neutrons.
Wiki User
∙ 13y agoEuropium (Eu)
Wiki User
∙ 15y agoEuropium
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How do you find the number of neutrons from the mass number?
To find the number of neutrons from the mass number, subtract the atomic number from the mass number. The atomic number represents the number of protons in an atom, and by subtracting it from the mass number, you can determine the number of neutrons present.
How do you tell how many neutrons are in an atom with the atomic number of 12?
To find the number of neutrons in an atom with an atomic number of 12 (which is the number of protons), you would subtract the atomic number from the atomic mass number. The atomic mass number is the sum of the protons and neutrons in the atom. For an atom with an atomic number of 12, the number of neutrons can be calculated by subtracting 12 from the atomic mass number given for that specific atom.
How can you determine the number of neutrons in an atom if its mass number and its atomic number are known?
It is impossible to determine the number of neutrons from the mass number and atomic mass, since the two are essentially same value. However, with the atomic number and the mass number, one can calculate the number of neutrons by subtracting the atomic number from the mass number.
Which particles account for the difference between the atomic number and the mass number?
Neutrons account for the difference between the atomic number and the mass number of an atom. The mass number is the total number of protons and neutrons in an atom's nucleus, while the atomic number is the number of protons. By subtracting the atomic number from the mass number, we can determine the number of neutrons present in the nucleus.
The number of neutrons in the nucleus of an atom can be calculated by what?
The number of neutrons in the nucleus of an atom can be calculated by subtracting the number of protons (atomic number) from the atomic mass of the atom. Atomic mass - Atomic number = Number of neutrons.
What is atomic mass A and neutron number N for given atom?
Atomic mass is the number of protons and neutrons that make up an atom. The neutron number is only the number of neutrons present in the atom. This can be found by subtracting the number of protons from the atomic mass.
What are the particles that make a atom including the atomic number and mass number?
The atomic number is the number of protons in an atom (which equal the number of electrons present) The atomic mass is the number of protons+neutrons in an atom
What is the number of neutrons in an atom affects the atomic what?
The number of neutrons in an atom affects the atomic mass of an element. Neutrons contribute to the overall mass of the atom but do not affect its chemical properties.
The diffirentiate of atomic mass and atomic number?
Atomic mass is the total mass of an atom, which includes the mass of protons, neutrons, and electrons. Atomic number is the number of protons in the nucleus of an atom. Atomic mass is the sum of the number of protons and neutrons, while atomic number is the number of protons only.
How do you find the number of neutrons from the mass number?
To find the number of neutrons from the mass number, subtract the atomic number from the mass number. The atomic number represents the number of protons in an atom, and by subtracting it from the mass number, you can determine the number of neutrons present.
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.
When you subtract the atomic number from the atomic mass of any element you get what?
Atomic mass= Atomic no. + no. of neutrons So when the atomic no. is subtracted from the atomic mass, the result would be equal to the number of neutrons present in the nucleus of the atom of the element.
How many neutrons are in one atom?
The number of neutrons in one atom can vary depending on the element. Neutrons are one of the three main subatomic particles found in an atom, along with protons and electrons. The number of neutrons in an atom is calculated by subtracting the number of protons (atomic number) from the atomic mass of the atom.
How is the number of neutrons in an atom found?
The number of neutrons in an atom can be found by subtracting the number of protons (which is the atomic number) from the mass number. The mass number is the sum of protons and neutrons in the nucleus of an atom.
How can you determine the number of neutrons in an atom if its mass number and its atomic number are known?
It is impossible to determine the number of neutrons from the mass number and atomic mass, since the two are essentially same value. However, with the atomic number and the mass number, one can calculate the number of neutrons by subtracting the atomic number from the mass number.
How can you figure out the number of neutrons in an atom?
You subtract the atomic number from the atomic weight. For example, if you have a helium atom and its atomic weight is 4 and you subtract its atomic number (2) the number of neutrons in the helium atom is 2.
Atomic mass is the number of what in the nucleus?
Atomic mass is the sum of protons and neutrons that are present in the nucleus While the number of protons and electrons remain constant in the neutral atom, the number of neutrons may vary within different atom species of the same element. As a result, the atomic mass for one atom may be different from another atom of the same element if the number of neutrons varies.
