Science Flashcards
Periodic table of elements
Organizes elements according to other properties
Element
One of the basic substances that combine to form other substances
Group
A column of elements in the periodic table of elements
Period
Each row in the periodic table is called a. They are numbered 1 to 7.
Symbol
 Is a one or two letter abbreviation of a chemical element
Nonmetal
Solid, nonmetals, adult looking riddle and don’t conduct electricity
Atomic number
 Atomic number of chemical elements is the number of protons found in the nucleus of an atom of that element
Metalloid
 Have some characteristics of both metals and nonmetals
Atomic mass
 Is the mass of chemical element
Metals
Metals are shiny, malleable, able to be pounded into thin sheets ductile stretched into wires and good conductors of heat and electricity -75% of elements on periodic table