Atoms
This is a small particle that makes up matter on Earth
atom
What is a substance made up entirely of one type of atom?
Element
What law states that matter is neither created nor destroyed, only changed in form
Law of Conservation of Matter
The symbol for each element on the periodic table is known as what?
chemical symbol
This is an uncharged particle in the nucleus of the atom.
neutron
Vertical columns of elements on the periodic table are known as what
Groups or families
Anything that has mass and takes up space
matter
The number of protons in the nucleus of each atom of an element is known as what?
atomic number
These are atoms of the same element that have different numbers of neutrons.
isotope
These are shiny, good conductors of heat and have luster
metals
Two or more elements make up a what?
compound
The sum of the protons and and neutrons in the nucleus of an atom is known as what?
mass number
This is a positively charged particle in the nucleus of the atom
proton
Horizontal rows of elements on the periodic table are known as what?
Periods
True or False- heat is matter
false
Argon, krypton and neon are example of what type of elements on the period table?
Noble gases
This is a negatively charged subatomic particle found outside of the nucleus
electron
Elements that have characteristics of metals and non metals
metalloid
True-or False- Light is matter
false
Who came up with the periodic table?
Dmitri Mendeleev