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

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