matter
atomic structure
periodic table
formulas and compounds
equations
100
CM
What is a length unit?
100
atom
What is the smallest unit of an element?
100
Mendeleev
Who created the periodic table?
100
formula unit
What is the simplest collection of atoms from which an ionic compound's formula can be established?
100
chemical equation
What is a representation with symbols and formulas of the identities and relative amounts of the reactants and products in a chemical reaction?
200
mass
What is the measure of the amount of matter something has?
200
element
What is a pure substance made of only one atom?
200
1869
What is the year when the first periodic table was published?
200
compound
What is a substance that is made from the atoms of two or more elements that are chemically bonded?
200
reactants
What is the original substances in a chemical reaction?
300
compound
What is a substance that is made from the atoms of two or more elements that are chemically bonded?
300
negative charge
What is the charge of an electron?
300
periodic table
What is the arrangement of the elements in order of their atomic numbers so that elements wiht similar properties fall in the same column or group?
300
formula equation
What is a representation of the reactants and products of a chemical reaction by their symbols or formulas?
300
product
What is the the resulting substance in a chemical reaction?
400
plasma
What is the fourth state of matter?
400
n+/-
What is the symbol of a neutron?
400
the flourine family
What is group 17 of the periodic table?
400
formula mass
What is the sum of the averageatomic masses of all the atoms represented in th eformula of any molecule, formula unit, or ion?
400
word equation
What is an equatio in which the reactants and products in a chemical reaction are represented in words?
500
mixture
What is a blend of two or more kinds of matter, of which retains its own identity and properties?
500
positive charge
What is the charge of a proton?
500
Group 18
What is the number of the group of noble gases?
500
ionic compund
What is compose dof positive and negatice charges that are compbined so that the number of positive and negative charges are equal?
500
reversibile reaction
What is a chemical reaction in which the products reform the original reactants?
M
e
n
u