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Structure of Matter
Question | Answer |
---|---|
The basic units of matter and the smallest unit of an element. | Atom |
Anything that has mass and takes up space. | Matter |
A subatomic particle without an electrical charge; often known as a neutral charge. | Neutron |
A subatomic particle with a negative charge. | Electron |
The number of protons in the nucleus of an atom. It also determines an element's place on the Periodic Table of Elements | Atomic Number |
A subatomic particle with a positive electrical charge | Proton |
A particle made up of two or more atoms that are chemically bonded together. | Molecule |
A pure substance that CANNOT be separated into a simpler substance by physical or chemical means. | Element |
Number found below the symbol that tells us the TOTAL number of protons and neutrons in an element | Atomic Mass |