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The mass number of the most important isotope of plutonium (239Pu) is 239.

For the other isotopes see the link below; mass number = number of protons + number of neutrons).

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What is the mass number of the isotopes of plutonium?

The mass number of plutonium isotopes can vary depending on the specific isotope. Common plutonium isotopes include plutonium-238, plutonium-239, and plutonium-240, with mass numbers of 238, 239, and 240 respectively.


Why does plutonium have a less mass then uranium?

Plutonium generally has a lower atomic mass compared to uranium because it has fewer protons and neutrons in its nucleus. Plutonium isotopes tend to have a smaller number of nucleons overall compared to most uranium isotopes, resulting in a lower atomic mass.


Which element N S Pu or Cl contains the least moles of atoms in a 5.0g sample?

Number of moles = mass / molar mass, so the answer is the one with the greatest molar mass. This is plutonium.


How much neutrons and electrons are in plutonium?

All the isotopes of plutonium has 94 protons and 94 electrons. For the number of neutrons of a specified isotope: number of neutrons = rounded atomic mass of the isotope - atomic number (or protons number) For plutonium-239: 94 protons, 94 electrons, 145 neutrons. The atomic number of plutonium is 94.


How many protons electrons and neutrons are there in plutonium 240?

All the isotopes of plutonium has 94 protons and 94 electrons. For the number of neutrons of a specified isotope: number of neutrons = rounded atomic mass of the isotope - atomic number (or protons number) For plutonium-239: 94 protons, 94 electrons, 145 neutrons. The atomic number of plutonium is 94.


How many neutrons has plutonium?

Plutonium-239 has: 94 protons, 94 electrons, 145 neutrons.For other isotopes the number of neutrons is different.Number of neutrons = Mass number of an isotope - Atomic number of the element


How many neutronsdoes plutonium?

Plutonium-239 has: 94 protons, 94 electrons, 145 neutrons.For other isotopes the number of neutrons is different.Number of neutrons = Mass number of an isotope - Atomic number of the element


How many nutrons are in plutonium?

Plutonium-239 has: 94 protons, 94 electrons, 145 neutrons.For other isotopes the number of neutrons is different.Number of neutrons = Mass number of an isotope - Atomic number of the element


What is the atomic number and atomic mass for plutonium?

The atomic number of plutonium (Pu) is 94. The atomic weight of Pu is approximately 244 grams per mole. See the Web Links and the Related Questions to the left of this answer for a periodic table and more information about this element.


What is the atomic number for plutonium?

The atomic number of plutonium is 94.


What is Mass Of Plutonium 239 Atom?

PlutOnium 239 is an element - plutOnium - with an atomic weight of 239.


The plutonium isotope with 145 neutrons?

The plutonium isotope with 145 neutrons is plutonium-242 (Pu-242). This isotope has 97 protons (since all plutonium isotopes have 94 protons) and a total atomic mass of approximately 242 atomic mass units.