the periodic table - glossary Flashcards
(9 cards)
atom
the smallest particle of an element that can exist.
chemical properties
features of the way a substance reacts with other substances.
elements
what all substances are made up of, and which contain only one type of atom.
groups
columns of the periodic table.
metals
shiny, good conductors of electricity and heat, malleable and ductile, and usually solid at room temperature.
non-metals
dull, poor conductors of electricity and heat, brittle and usually solid or gaseous at room temperature.
periods
rows of the periodic table.
periodic table
shows all the elements arranged in rows and columns.
physical properties
features of a substance that can be observed without changing the substance itself.