1) The horizontal rows. They tell the number of electron orbits (energy levels). a) elements b) periods c) groups 2) Vertical columns. They have similar chemical properties and make families. a) elements b) periods c) groups 3) Elements in the same group have the same number of ______________ in the highest occupied energy level. a) protons b) electrons c) neutrons 4) Group 1A is called the _________ and they are very reactive. a) alkali metals b) earth metals c) transition metals 5) Group 2A is called the ______ and they are less reactive than the alkali metals. a) alkali metals b) metalloids c) transition metals 6) Group 7A is called the ______ and they are very reactive nonmetals. a) transition metals b) halogens c) noble gases 7) Group 8A is called the ______ and they never react with other elements (means inert). a) transition metals b) halogens c) noble gases 8) The charge of a proton is a) neutral b) positive c) negative 9) The charge of an electron is a) neutral b) positive c) negative 10) The charge of a neutron is a) neutral b) positive c) negative 11) alkali metals are a) reactive b) not reactive c) extremely reactive 12) earth metals are a) reactive b) not reactive c) extremely reactive 13) halogens are a) not reactive b) extremely reactive nonmetals c) extremely reactive 14) noble gases are a) not reactive b) extremely reactive nonmetals c) extremely reactive 15) An ion is electrically charged because a) it has the same number of electrons and protons b) it has a unequal numbers of electrons and protons 16) If an electron is gained, the ion's charge becomes a) positive b) negative 17) If an electron is lost, the ions charge becomes a) positive b) negative 18) Do nonmetals gain or lose electrons? a) gain b) lose 19) Do metals gain or lose electrons? a) gain b) lose 20) Which elements do not ionize? a) alkali metals b) transition metals c) halogens d) noble gases 21) In a period, which atomic radius is biggest? a) far left b) far right 22) In a period, which atomic radius is smallest? a) far left b) far right 23) In a group, which atomic radius is biggest? a) furthest down b) highest up 24) In a group, which atomic radius is smallest? a) furthest down b) highest up 25) In periods, ionization energy increases the further a) right b) left 26) In groups, ionization energy increases the further a) up b) down 27) Electron affinity increases in the same pattern as a) atomic radius b) ionization energy

Chemistry

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