The Periodic Table
what is the periodic table?
the arrangements of the elements
what did Dmitri Mendeleev discover?
The Periodic Table
what is the chemical name?
the name of the element
where are metals on the periodic table?
the metals are the elements that are shiny and conduct energy well
what is a subscript?
the number that is written below chemical equations
there is a ____ for every element on the periodic table
a card
how did J.J. Thomson contribute to the Atomic Theory
he figured out that atoms are made up of smaller particles
what is the chemical symbol?
observation of the chemicals name
where are the nonmetals on the periodic table?
where the poor conductors of heat and electricity lie
what is a chemical formula?
uses chemical symbols and numbers to represent a given number
how many elements are on the periodic table?
118
how did John Dalton contribute to the atomic theory?
he discovered that matter is made up of atoms
what is the average atomic mass?
the average weight of an atom
where are the metalloids on the periodic table?
by the semiconductors
what is a chemical equation?
uses symbols to show the relationship between the substances produced by a chemical reaction
what is the current periodic table arranged by?
the atomic numbers
how did Ernest Rutherford contribute to the Atomic theory?
he studied the parts of an atom
what is the atomic number?
the number of protons in the nucleus
where are the groups on the periodic table?
the verticle columns
signs separate the chemical reactions of multiple ___ and___
Products and Reactants
who created the periodic table?
Dmitri Mendeleev
how did Neils Bohr contribute to the making of the atomic theory?
he figured out how the electrons in the atoms behaved
each square contains__,___,___and ___
atomic number, chemical name,chemical symbol and adverage atomic mass
where are the periods on the periodic table?
the horizontal columns on the periodic table
true or false: there is no subscript on 0
True