Elevate Science Topic 8 - Lesson 1

A majority of the mass in an atom can be found in the electron cloud surrounding the nucleus

Atomic mass is the sum of an atom's protons and neutrons.

The center of an atom, containing all of it's protons and neutrons

The basic particle from which all elements are made & smallest particle to exists as a specific element.

The number of protons in an atom.

All atoms of the same element have the same number of protons.

A tiny negatively-charged particle that moves around the outside of the nucleous of an atom.

A small particle in the nucleus of the atom with no electric charge

The sum of protons and neutrons in the nucleus of an atom

An atom with the same number of protons but different number of neutrons from other atoms of the same element.

A small positively-charged particle that is found in the nucleus of an atom.