1) A compound is made up of two or more ___________________ of atoms.  a) different types b) similar types c) bonded pairs d) identical sets 2) Matter is defined as anything that has ______________ and volume.  a) density b) mass c) length d) height 3) Oxygen is considered a(n) ____________________ because it is made of one type of atom. a) compound b) proton c) electron d) element 4) A(n) ____________________ is a single type of atom. a) compound b) substance c) element d) nucleus 5) A molecule is made up of two or more __________________ bonded together. a) elements b) atoms c) compounds d) liquids 6) Water (H 2 O) is an element. a) true b) false 7) NaCl (salt) is considered a compound.  a) true b) false

Atoms, Elements, Molecules and Compounds

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