1) This tells you the number of protons in an element. a) atomic number b) atomic mass c) valence electrons d) row/period e) group/column f) element key 2) This is the total of protons and neutrons combined. a) atomic number b) atomic mass c) row/period d) group/column e) valence electrons f) element key 3) This tells you how many electron energy levels an element has. There are 7 of these. a) atomic number b) atomic mass c) valence electrons d) row/period e) group/column f) element key 4) These are the outermost electrons. In the farthest level from the nucleus.  a) atomic number b) atomic mass c) valence electrons d) row/period e) group/column f) element key 5) This tells you all about an element - including its symbol and name. a) atomic number b) atomic mass c) valence electrons d) row/period e) group/column f) element key 6) Elements that are in the same one of these, share properties.  There are 18 of these. a) atomic number b) atomic mass c) valence electrons d) row/period e) group/column f) element key 7) This means to allow electricity or heat to come through. a) conductivity b) malleability c) ductile d) metalloids 8) This means the substance can be hammered into thin sheets. a) conductivity b) malleability c) ductile d) metalloids 9) This means the substance can be pulled into thin wires. a) conductivity b) malleability c) ductile d) metalloids 10) This means it has properties of both metals and nonmetals. a) conductivity b) malleability c) ductile d) metalloids 11) This tells you the number of Valence Electrons a) periods b) rows c) groups d) energy levels 12) The atomic number is equal to which of the following pairs? a) neutrons and protons b) protons and electrons c) neutrons and electrons d) protons and energy levels 13) These two subatomic particles are found in the nucleus. a) Protons b) Neutrons c) Electrons d) Valence electrons 14) This group is stable and non-reactive. a) Group 1 b) Group 4 c) Group 17 d) Group 18 15) This group is known as the most reactive metals. (Hint they have one valence electron) a) Group 1 b) Group 4 c) Group 17 d) Group 18 16) This group is known as the most reactive non-metals. a) Group 1 b) Group 4 c) Group 17 d) Group 18 17) If chlorine has a mass number of 35 and an atomic number of 17, how many neutrons are in an atom of chlorine? a) 17 b) 18 c) 35 d) 52 18) Which other elements would react similar to magnesium (Mg)? a) Sodium (Na) b) Chlorine (Cl) c) Calcium (Ca) d) Beryillium (Be) 19) These elements are found along the staircase and share characteristics of both metals and non-metals. a) Metals b) Non-metal c) Metalloids 20) This is responsible for an atom's reactivity. a) Proton b) Neutron c) Electron d) Valence electron

Periodic Table Review

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