1) The center of the atom is called the _______ a) Proton b) Nucleus c) Neutron d) Electron 2) A positively charged subatomic particle is a/an _________. a) Proton b) Neutron c) Electron 3) In which direction do periods go on the Periodic Table? a) Up to down b) Across the table c) From the corners d) Down 4) The overall charge of the nucleus is ____________. a) Positive b) Negative c) Neutral 5) Which element has the symbol ‘O’? a) Gold b) Oxygen c) Osmium d) Oxide 6) Electrons are heavier than protons. a) True b) False 7) Where are electrons found in an atom? a) In the nucleus b) In the electron shells / orbitals c) Mixed with protons d) Inside neutrons 8) Which of the following is a metal? a) Oxygen b) Chlorine c) Magnesium d) Helium 9) What is found in the nucleus? a) Protons and Neutrons b) Protons and electrons c) Electrons d) Neutrons and Electrons 10) What is the correct chemical symbol for the element carbon? a) C b) Ca c) Cl d) O

Atom, Elements and Periodic Table

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