Matter Flashcards 1- Atomic Structure

Front

atom

Back

The smallest particle of an element, made of protons, neutrons, and electrons.

Front

Bohr model of the atom

Back

A model that explains why electrons in orbit do not spiral into the center of an atom.

Front

electron

Back

Subatomic particle surrounding the nucleus of an atom. It has a relative charge of -1, and a very small mass.

Front

electron shells

Back

The orbits around an atom that are allowed for electrons in the Bohr model.

Front

model

Back

A description, analogy, or equation that helps you to explain the physical world.

Front

neutron

Back

Subatomic particle found in the nucleus of an atom. It has no charge and a relative mass of 1.

Front

nucleus

Back

The small center of an atom made of protons and neutrons.

Front

order of magnitude

Back

A number to the nearest power of 10.

Front

plum-pudding model of the atom

Back

Outdated model of the atom in which electrons are embedded in a sphere of positive charge.

Front

proton

Back

Subatomic particle found in the nucleus of an atom. It has a relative charge of +1 and a relative mass of 1.