Nucleus

usgb/ˈnuːkliəs/
noun

The center part of an atom where protons and neutrons are located.

In an atom, electrons move around the nucleus.
Visual representation of "nucleus" - The center part of an atom where protons and neutrons are located.

Often appears as...

  • atomic nucleus
  • nucleus of an atom

Usage tips

Technical

Definition 1 of 4
Visual representation of "nucleus"
LampPro Tip 1/3

Atom's Heart

Nucleus refers to the very central, densest part of an atom, crucial for its structure.

Illustration for Atom's Heart
Scientists study the atomic nucleus to understand nuclear energy.
LampPro Tip 2/3

Not Visible

The atomic nucleus is incredibly small and can't be seen with regular microscopes.

Illustration for Not Visible
Despite being invisible, the nucleus holds most of an atom's mass.
LampPro Tip 3/3

Not Alone

In physics, 'nucleus' is typically discussed with particles like electrons, neutrons, and protons.

Illustration for Not Alone
Protons and neutrons bind together in the nucleus, surrounded by electrons.
Visual representation of the word "Nucleus"

Never forget "Nucleus"

Humans forget easily. That's why you should download WordUp: Smart reminders, word games, AI practice, and much more!

Download on the App StoreGet it on Google PlayGet it from MicrosoftGet it on AppGallery
Chrome

WordUp Chrome Extension

As you browse the web instantly look up words you don’t know.

Get Chrome Extension
Back to top