Skip to main content
nucleus

nucleus

10 5.8
The small positively charged center of an atom containing protons and neutrons
  • noun
  • /ˈnjuːkliəs/
  • Specialized
translation icon : núcleo
  • The atoms in metals, like all atoms, have electrically charged electrons surrounding a nucleus.
  • atomic nucleus
  • proton-rich nucleus
  • nucleus and electrons

Basically you have nuclei and the nuclei repel each other.

Autoplay Next

Examples

  • Eventually, after emitting a dozen or two of these gammas, the nucleus abruptly loses its deformation.

    Academic text (1995)
  • The observation of proton pairs coming from the nucleus may have broad interest beyond nuclear physics, Nazarewicz said.

    Academic text (2002)
  • That creates A heavier nucleus with slightly less mass.

  • So you can extract energy from the nucleus of an atom in two ways, right?

  • Mr. Preston, do you know what happens if you split an atom at its nucleus?

  • Hydrogen has a nucleus with one proton.

  • You've heard of the theory to split the nucleus of an atom?

  • Lithium is the third simplest element in the universe, with three protons in its nucleus.

    Academic text (2002)
  • In a hydrogen atom, the nucleus consists of a single proton and no neutrons.

  • The nucleus of an atom contains protons and neutrons, which collectively account for most of its mass.

Compounds

nucleus accumbens
  • Specialized
1 8.4

Part of the brain that helps you feel pleasure and want things

cell nucleus
  • Specialized
1 3.2

The part of a cell surrounded by a membrane that holds DNA and controls growth and reproduction

caudate nucleus
  • Specialized
1 9.9

A part inside the brain shaped like a tail that helps control movement and learning

benzene nucleus
  • Specialized
8.1

A ring of six carbon atoms, each with one hydrogen

dentate nucleus
  • Specialized
9.9

A large folded group of brain cells in the back part of the brain that helps control movement and balance

amygdaloid nucleus
  • Specialized
9.9

A small part of the brain shaped like an almond that helps control feelings and motivation

lens nucleus
  • Specialized
7.0

Central part of the eye lens surrounded by the outer layer

lenticular nucleus
  • Specialized
9.9

A lens-shaped part of the brain made of gray matter that helps control movements you choose

lentiform nucleus
  • Specialized
9.9

A lens-shaped part deep in the brain that helps control movement

nucleus niger
  • Specialized
9.9

A dark part in the middle of the brain that helps control movement

subthalamic nucleus
  • Specialized
9.9

A small part deep inside the brain that helps control movement

How Massive

nucleus
  • Specialized
10 5.8
proton
  • Specialized
63 4.5
electron
  • Specialized
100 3.7

Surface Forms

nucleus singular
nuclei plural

Etymology

Nucleus comes from the Latin word nux, which means 'nut' or 'kernel'. So the atom's nucleus is the tiny 'kernel' at the center that holds protons and neutrons and most of the atom's mass.