1) An element has an atomic mass of 50 and an atomic number of 25. How many neutrons are in the atom? a) 50 b) 25 c) 2 d) 75 2) An element has 14 protons and 15 neutrons. What is the atomic mass? a) 14 b) 15 c) 29 d) 1 3) AN ELEMENT HAS 29 PROTONS; HOW MANY ELECTRONS DOES IT HAVE? a) 30 b) 29 c) 28 d) 58 4) AN ELEMENT HAS 82 ELECTRONS; HOW MANY PROTONS DOES IT HAVE? a) 84 b) 164 c) 80 d) 82 5) AN ELEMENT'S ATOMIC NUMBER IS 48; ITS MASS NUMBER IS 112. HOW MANY PROTONS DOES IT HAVE? a) 48 b) 112 c) 64 d) 96

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