How many neutrons are in the isotope uranium-238?

Answer 1

Uranium, atomic number 92, has several isotopes, and 238U is just one of them. Remember that a nucleon is one of the particles that make up the nucleus of an atom, and that means a proton or a neutron. In the case of this isotope of uranium, it has the 92 protons we'd expect for uranium, and it has 146 neutrons in its nucleus along with those protons. That's 238 necleons in the nucleus if 238U. Wikipedia has more information on uranium and on the nucleon, and links are provided.

Answer 2

Since any uranium atom has 92 protons and the mass number is the sum of the numbers of protons and neutrons, the number of neutrons is 238 - 92 or 146.

Answer 3

Number of neutrons = Mass number - atomic number = 238 - 92 = 146

Answer 4

Uranium-238 has 146 neutrons.

Answer 5

Uranium 238 has 146 neutrons.

Answer 6

146 neutrons in uranium 238 nucleus.

Answer 7

Uranium 238 has 146 neutrons.