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) Oxygen is considered a(n) ____________________ because it is made of one type of atom. a) compound b) proton c) electron d) element 3) A(n) ____________________ is a single type of atom. a) compound b) substance c) element d) nucleus 4) A molecule is made up of two or more __________________ bonded together. a) elements b) atoms c) compounds d) liquids 5) Which part of the picture represents the chemical symbol? a) 50 b) Sn c) Tin d) 118.711 6) Which part of the picture represents the atomic number?  a) 50 b) Sn c) Tin d) 118.711 7) Atoms are the smallest piece of matter.  a) true b) false 8) Water (H 2 O) is an element. a) true b) false 9) Elements can have more than one atom, but not more than one TYPE of atom.  a) true b) false 10) NaCl (salt) is considered a compound.  a) true b) false 11) All compounds are molecules, but not all molecules are compounds. a) true b) false

Atoms, Elements, Molecules and Compounds

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