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 an atomic mass of 19 and an atomic number of 9. How many neutrons are in the atom? a) 10 b) 9 c) 19 d) 28 3) An element has an atomic mass of 22 and 10 protons. How many neutrons are in the atom? a) 10 b) 22 c) 32 d) 12 4) An element has an atomic mass of 10 and 5 protons. How many neutrons are in the atom? a) 10 b) 15 c) 5 d) 2 5) An element has 14 protons and 15 neutrons. What is the atomic mass? a) 14 b) 15 c) 29 d) 1 6) An element has 7 protons and 8 neutrons. What is the atomic mass? a) 15 b) 8 c) 7 d) 1 7) AN ELEMENT HAS 29 PROTONS; HOW MANY ELECTRONS DOES IT HAVE? a) 30 b) 29 c) 28 d) 58 8) AN ELEMENT HAS 82 ELECTRONS; HOW MANY PROTONS DOES IT HAVE? a) 84 b) 164 c) 80 d) 82 9) AN ELEMENT HAS 15 PROTONS, 15 ELECTRONS, AND 16 NEUTRONS. WHAT IS ITS ATOMIC MASS? a) 15 b) 30 c) 31 d) 46 10) 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

Calculating SUBATOMIC PARTICLES

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