![]() Except when matter is weightless, nucleus - The center of an atom.atom weight and atom mass are the same. Chemists noble gases - Gases whose outer shells are full, makingusually use the term atomic weight while physicists use them extremely stable.the term atomic mass. ![]() no electrical chargeatomic weight - The weight of the element. more atoms.atomic number - The number of an element determined neutron - The part of the nucleus of atoms that haveby the number of protons in its nucleus. Try to listen for these termswhile viewing the program, pay close attention so you can later include them in your scientific descriptions,observations, and creative writing assignment activities.atom - The fundamental unit of matter found in the mass - The total quantity of an object's matter.universe made up of a nucleus of protons and neutrons molecules - The compounds made up of two orand orbiting electrons. ![]() T_ F_.© 2003 Algonquin Educational Productions Published and Distributed by United Learning All rights to print materials cleared for classroom duplication and distribution.Ģa Name _ ELEMENTS OF PHYSICS MATTER: ATOMS AND MOLECULES Vocabulary DefinitionsThe following words and terms used in the program may be unfamiliar to you. Almost all elements and substances can exist as a solid, a liquid, or a gas. There are 92 elements found naturally in the universe. An atom with a unique number of protons is called an element. The force that binds atoms together is electricity. Atoms are about the size of a drop of water. ![]() Electrons of atoms spin around the nucleus made up of protons and neutrons. Matter and energy make up the physical universe. ![]() 1 Name _ ELEMENTS OF PHYSICS MATTER: ATOMS AND MOLECULES Pre-TestDirections: This will help you discover what you know about the subject of matter before you beginthis lesson. ![]()
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