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

Answer 1

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.

Answer 2

Plutonium is atomic number 94, which means it always has 94 protons. It will also have 94 electrons if it is neutrally charged; a positive ion will have fewer and a negative ion will have more. Different isotopes have different numbers of neutrons, ranging from 142 for Pu-236 to 150 for Pu-244.
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).

The most common isotope of plutonium has a mass number of 234 and therefore contains 140 neutrons.

Answer 3

Plutonium's atomic number is 94. That means it has 94 protons. For it to have 0 net charge then, it must be balanced out by 94 electrons. Different isotopes of plutonium have different numbers of neutrons.

Answer 4

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

Answer 5

In plutonium-240, there are 94 protons, since plutonium has an atomic number of 94. Since atoms are electrically neutral, there are also 94 electrons. The number of neutrons can be calculated by subtracting the number of protons from the atomic mass, which is typically close to 240 for plutonium-240.

Answer 6

Plutonium-240 has 94 protons, 94 electrons and 146 neutrons.