Vocab 2/3 Flashcards
Physical Property
A characteristic of a substance that can change without the substance becoming diffrent
Element
A substance that can not be decomposed into simpler substance by chemical or physical means
Compound
A substance with constant composition that can be broken down into elements by chemical processes
Solid
Has a fixed shape and volume
Chemical properties
The ability of a substance to change into a different substance
Gas
No fixed shape or volume
Chemical Change
The change of a substance into another substance through reorganization of atoms
Matter
The material of the universe
Liquid
Fixed volume but takes the shape if its container
Alloy
Substance that contains a mixture of elements and has metallic properties
Electron
A negatively charged particle that occupies the space around the nucleus of an atom
Nucleus
A small dense center if positive charge in an atom
Isotopes
Atoms of the same element that have a different number of protons and neutrons with the same atomic number
Atomic Number
The number of protons in the nucleus of an atom
Mass Number
The total number of protons and neutrons in the nucleus of an atom