notes Flashcards
(12 cards)
ionic compound
compounds are made when metals give up electrons and non metals gain protons
covalent compounds
atoms are joined when electrons are shared between one another example H2O
a pure substance that is made up of one type of atom is called
element
a pure substance made of two or more atoms that are joined together due to a chemical change is
compound
chemical bonds are formed when atoms gain or loose or when they do what
loose electrons or share electrons
when a atom looses electrons it becomes
posotive
when a atom gains electrons it becomes what
negative
metals and non metals form what
ionic compounds
the atoms in nonmetals tend to gain
electrons
a what isn repeating pattern of positive and negative ions
ionic lattice
a neutral particle that I made up of atoms that are joined together by covalent bonds is called what
molecule
a what is an ion that is made up of two or more atoms that are held together with covalent bonds
polyatomic ions