Science- Chapter 3 Vocabulary

anything that has mass and takes up space.

• atom

• electrons

• nucleus

• Matter

defined as a small particle that makes up most types of matter

• Nucleus

• Matter

• Atom

• Electron

States that matter is not created or destroyed- it only changes form

• Nucleus

• Law of Conservation of Matter

• Electron

• Scientific Method

A particle that rapidly moves around the outside of the nucleus and carries a negative charge.

• Electrons

• Neutrons

• Neutral

• Protons

The scientist who discovered electrons

• Dalton

• Chadwick

• Rutherford

• J.J. Thomson

The central core of the atom which makes up most of the atom’s mass

• Proton

• Nucleus

• Neutron

• Neutral

Positively charged particles in the nucleus

• Neutron

• Electron

• Proton

• Matter

The scientist who discovered

protons

• Chadwick

• Rutherford

• Thompson

• Lavoisier

A particle inside an atom that does not carry an electrical charge

• Electron

• Proton

• Neutron

• Nucleus

The scientist who discovered neutrons

• Thompson

• Chadwick

• Rutherford

• Dalton