Chapter 4 Definitions Flashcards
Matter
Anything with mass and volume
Metals
Good conductors of heat and electricity
Ductile and malleable
Shiny and usually grey
All but one is solid at room temp
Non metal
Not metals
Some solid some gas
Only bromine is liquid at room temp
Mettaloids
Properties in between metal and non metal
Ion
An atom or group of atoms that had lost or gained electrons
Atom
Smallest particle in matter
Chemical equation
Words or symbols and formulas that describe the changes that occur during a chemical reaction
Compound
Pure substances made of two or more elements that are combined together chemically
Element
Substance that cannot be broken down into any simpler substance by chemicalmeans
Electron
Subatomic particle that has a negative charge of 1-
Shell
Cloud like energy level that surrounds the nucleus of an atom occupied by one or more electrons