HOW IS THE PERIODIC TABLE ARRANGED? IN ORDER OF INCREASING ATOMIC NUMBER WHO IS GIVEN CREDIT FOR COMING UP WITH THE PERIODIC TABLE? DIMITRI MENDELEV WHAT IS AN ION? AN ATOM WITH A CHARGE GIVE THREE CHARACTERISTICS OF A METAL. 1.METALS LOSE ELECTRONS EASILY AND TEND TO FORM POSITIVE IONS. 2.METALS ARE MALLEABLE AND DUCTILE. 3.METALS HAVE LUSTER (ARE SHINY). 4.METALS ARE GOOD CONDUCTORS OF HEAT AND ELECTRICITY. 5.MOST METALS ARE SOLIDS AT ROOM TEMPERATURE. GIVE THREE CHARACTERISTICS OF A NONMETAL. A.NONMETALS TEND TO GAIN ELECTRONS AND FORM NEGATIVE IONS. B.NONMETALS ARE SOLIDS OR GASES AT ROOM TEMPERATURE. C.IF THEY ARE SOLIDS, THEY ARE BRITTLE SOLIDS. D.NONMETALS ARE NOT GOOD CONDUCTORS OF HEAT AND ELECTRICITY. WHAT IS AN ION? AN ATOM WITH A CHARGE WHAT IS A ROW IN THE PERIODIC TABLE CALLED? A PERIOD WHAT IS A COLUMN IN THE PERIODIC TABLE CALLED? A FAMILY OR GROUP HOW DOES THE ATOMIC RADIUS CHANGE AS YOU MOVE FROM LEFT TO RIGHT IN A PERIOD? ATOMIC RADIUS DECREASES HOW DOES ATOMIC RADIUS CHANGE AS YOU MOVE FROM TOP TO BOTTOM IN A FAMILY OR GROUP? THE ATOMIC RADIUS INCREASES. WHAT IS IONIZATION POTENTIAL? IT IS THE ENERGY REQURED TO REMOVE AN ELECTRON FROM A NEUTRAL ATOM. HOW DOES IONIZATION POTENTIAL CHANGE AS YOU MOVE FROM LEFT TO RIGHT IN A PERIOD? IT INCREASES HOW DOES IONIZATION POTENTIAL CHANGE AS YOU MOVE FROM TOP TO THE BOTTOM OF A GROUP OR FAMILY? THE IONIZATION POTENTIAL DECREASES. WHAT IS ELECTRON AFFINITY? ELECTRON AFFINITY IS THE ENERGY RELEASED WHEN A NEUTRAL ATOM GAINS AN ELECTRON. HOW DOES ELECTRON AFFINITY CHANGE AS YOU MOVE FROM LEFT TO RIGHT IN A PERIOD? IT INCREASES HOW DOES ELECTRON AFFINITY CHANGE AS YOU MOVE FROM TOP TO THE BOTTOM OF A GROUP OR FAMILY? IT DECREASES NONMETALS TEND TO GAIN ELECTRONS AND FORM NEGATIVE IONS. WHERE WOULD YOU FIND ATOMS ON THE PERIODIC TABLE WITH THE MOST NONMETALLIC CHARACTER? IN THE UPPER RIGHT HAND CORNER OF THE PERIODIC TABLE, EXCLUDING THE INERT GASES, OF COURSE. METALS TEND TO LOSE ELECTRONS AND FORM POSITIVE IONS. WHERE ON THE PERIODIC TABLE WOULD YOU FIND ATOMS WITH THE MOST METALLIC CHARACTER? IN THE LOWER LEFT HAND CORNER WHAT ARE MOST OF THE ELEMENTS IN THE PERIODIC TABLE? METALS