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The atomic number of Re is 75 The atomic mass of one of its isotopes is 186 How many neutrons are in an atom of this isotope?
Wiki User
∙ 11y ago
The Atomic Mass minus the atomic number equals the number of neutrons. Thus in the case above the number of neutrons would calculate out to be 11. HOWEVER PLEASE NOTE Rhenium (Re) does not have an atomic mass of 86, it has two isotopes one of atomic mass 185 and another of atomic mass 187. Thus the real number of neutrons is 110 or 112.
Wiki User
∙ 13y ago
Wiki User
∙ 11y ago111
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How many neutrons are in a atom of magnesium?
Number of neutrons = Atomic weight - Atomic number (number of prtons) The atomic number of magnesium is 12; the standard atomic weight is circa 24,3. But magnesium has many isotopes (three are natural) and the number of neutrons is variable in the isotopes - from 7 to 28. The most common natural isotope, 24Mg, has 12 neutrons.
Does lead isotopes have the same neutrons?
NO,each isotope has different number of neutrons why that? in isotopes the mass number is changed but atomic number(protons) still constant,thus the number of neutrons will be changed
How many neutrons are in roentgenium?
Roentgenium-272 has 161 neutrons. Number of neutrons = Atomic mass of an isotope - Atomic number of the element The atomic number of roentgenium is 111, but Rg has many isotopes each with a different atomic mass and number of electrons.
How many neutron are in curium?
Number of neutrons = atomic mass of an isotope - atomic number of the isotope The atomic number of curium is 96; for the isotopic masses read at: http://en.wikipedia.org/wiki/Isotopes_of_curium.
How is an isotope and mass number related?
It isn't, as such. Isotopes of the same element have different numbers of neutrons, and neutrons have a mas of one atomic mass unit (amu). So isotopes have different atomic masses, but being told the number of neutrons any isotope has, will not enable you to say what element or atomic mass it had, unless you remembered the details for every single isotope. Even then different elements can have the same number of neutrons. Isotopes do get named after their atomic mass however - uranaium 235 has an atomic mass of 235, for instance.
How many neutrons do ununquadium have?
Number of neutrons = Atomic mass of an isotope - Atomic number of the element The atomic number of ununquadium is114; uuq has five isotopes, each with a different number of isotopes..
What is the number of neutrons in the element sulfur?
The number of neutrons in an atom depends on the isotope. The most common sulfur isotope has 16. The average number of neutrons in an atom of sulfur is about 32.065.
How much neutrons are in xenon?
Each isotope of an element has a different number of neutrons. Number of neutrons = Atomic mass of the isotope - Atomic number of the element The atomic number of xenon is 54. For the list of xenon isotopes see the link below.
How many neutrons and electrons does dubnium have?
Number of neutrons = Atomic mass of an isotope - Atomic number of the element The atomic number of dubnium is 105; dubnium has many isotopes and of course each idotope has a different number of neutrons - dubnium has now 13 isotopes and 1 isomer.
How many neutrons calcium?
The number of neutrons is the difference between the Atomic Mass of an isotope and the atomic number of the element; each isotope of calcium has a different number of neutrons. See the link below for calcium isotopes.
How many neutrons does the element fermium have?
Only isotopes Fr-221 and Fr-223 are natural.
How many neutrons are in a atom of magnesium?
Number of neutrons = Atomic weight - Atomic number (number of prtons) The atomic number of magnesium is 12; the standard atomic weight is circa 24,3. But magnesium has many isotopes (three are natural) and the number of neutrons is variable in the isotopes - from 7 to 28. The most common natural isotope, 24Mg, has 12 neutrons.
Does lead isotopes have the same neutrons?
NO,each isotope has different number of neutrons why that? in isotopes the mass number is changed but atomic number(protons) still constant,thus the number of neutrons will be changed
How may protons neutrons and electrons In lawrencium?
Number of neutrons = Atomic mass of an isotope - Atomic number of the element; the atomic number of Lr is 103. Lawrencium has many isotopes and each isotope has a different number of neutrons.
How many neutrons are in roentgenium?
Roentgenium-272 has 161 neutrons. Number of neutrons = Atomic mass of an isotope - Atomic number of the element The atomic number of roentgenium is 111, but Rg has many isotopes each with a different atomic mass and number of electrons.
How many neutron are in curium?
Number of neutrons = atomic mass of an isotope - atomic number of the isotope The atomic number of curium is 96; for the isotopic masses read at: http://en.wikipedia.org/wiki/Isotopes_of_curium.
What atom of an element with a different number of neutrons?
Isotopes.
