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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?
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∙ 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.
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∙ 15y ago
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∙ 14y agoWiki User
∙ 13y agoA Nickel atom (Ni) has a mass number of 61. How many neutrons does the atom have?
.
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∙ 9y agoThe isotope of lead - Pb-210 has 82 protons and 128 neutrons.
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∙ 13y agoEuropium (Eu)
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∙ 15y agoEuropium
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What does the number of neutrons determine?
they determine the atomic mass of the 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.
What is the number of protons and neutrons called?
The number protons in an atom is called the atomic number (it is this number that tells us which element the atom is). The number of neutrons in an atom can change, but the term for the amount of neutrons is called an isotope. The number of protons and neutrons added together is called the atomic mass.
What is the mass of the number minus atomic number?
The mass number minus the atomic number is the number of neutrons in an atom. The atomic number is both protons and electrons. Boron, atomic number 5, has two naturally occuring isotopes with mass numbers of 10 and 11, 10B, 11B. The number of neutrons in each is 5 and 6 respectively. The percentage occurence is roughly 20%, 80% respectively. This gives rise to the fractional atomic mass.
How many neutrons are there in an element having a mass number of 155 and an atomic number of 63?
The number of neutrons in the nucleus of an atom is always the difference between the mass number of the atom and the atomic number of the atom. Therefore, in this instance, there are (155 - 63) or 92 neutrons in the atom.
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 is the number of neutrons in an atom affects the atomic what?
The number of neutrons in an atom can affect the atomic mass of an atom.
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 does the number of neutrons determine?
they determine the atomic mass of the atom
The diffirentiate of atomic mass and atomic number?
Atomic mass is defined as the sum of the no. of proton and neutron present in the nucleus of an atom and Atomic Number is defined as the no. of electrons present in the extra nuclear part of an atom . BY; SHUBHAM KAKKAR
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.
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.
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 is the atomic mass determined?
Atomic Mass is the number of protons in an atom plus the number of neutrons in the same atom.
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.
What is atomic number or atomic mass?
ATOMIC MASS ;The total numbers of protons and neutrons present in the nucleus of an atom is called atomic mass and it is represented by A ATOMIC NUMBER;the number of protons in the nucleus of an atom are called atomic number or proton number and it is represented by Z
