1) Which of the following will definitely form an ion with charge +1? a) Na b) Ca c) Fe d) He 2) Name for the vertical columns in the periodic table a) valence electrons b) groups c) periods d) trends 3) Name for the horizontal rows in the periodic table a) valence electrons b) groups c) periods d) trends 4) What information is given by the group number of the representative elements (I, II, V, etc.) a) the exact position of the elements in the periodic table b) the total number of protons c) the number of valence electrons d) the total number of electrons 5) What information is given by the period number a) the number of valence electrons b) the atomic number c) the atomic mass d) the number of shells 6) The element in group V (15) and period 3 is a) Phosphorous b) Y c) In d) N 7) This is a non-metal a) Ba b) Mn c) Sn d) S 8) This is a metalloid a) Al b) Ga c) Ge d) F 9) Non-metal that is a good conductor of electricity a) graphite b) diamond c) sulfur d) calcium 10) The all have 7 valence electrons a) transition metals b) halogens c) metalloids 11) In this group they all are highly unreactive a) alkali metals b) halogens c) noble gases 12) In this group, the elements can be either solid, liquid or gas at room temperature a) metalloids b) halogens c) noble gases 13) The reactivity of the elements in this group decreases as the period number increases a) halogens b) alkaline metals c) transition metals 14) Which element would have a higher melting point a) Na b) K c) Rb 15) Which element would have a higher density a) K b) Rb c) Cs 16) Which halogen would be more reactive? a) F b) Cl c) Br 17) Which element would have more density? a) K b) P c) Ag 18) Which element could form colored compounds a) Cr b) K c) Ca 19) Which element could work more as a catayst? a) Pt b) Rb c) K 20) Which element would be better for an inert atmosphere (no reaction) a) Ar b) Cl c) O 21) Which element would exist as a molecule? a) Br2 b) Al2 c) Li2 22) Which element could not be found free in nature a) Ne b) Ca c) Au 23) Which element is more likely to have more than one oxidation state? a) Fe b) Na c) Al 24) Which element could be used as a lubricant? a) Diamond b) Graphite c) Paladium 25) Properties like high melting and boling points, conductor of electricity, soft and black may correspond to a) Iron b) Copper c) Graphite d) Platinum 26) Which is more reactive? a) Chlorine b) Bromine c) Iodine d) Fluorine 27) Given HCl + I2 --> a) there is no reaction b) the products are Cl2 and HI c) the products are ICl + H2 28) Exist as a monoatomic gas element a) Fluorine b) Nitrogen c) Neon d) Hydrogen 29) It is used to inflate balloons due to its low density and reactivity a) Neon b) Hydrogen c) Helium 30) Has 1 valence electron and 3 energy levels a) K b) Li c) Na 31) Can form a +2 ion and, as a neutral element, it has 4 energy levels a) Magnesium b) Calcium c) Sodium 32) Name the group of the following element: Can form an ion with charge -1, diatomic element, gas at room temperature, 3 energy levels. a) Alkali metals b) Halogens c) Noble gases d) Oxygen group 33) Some people inhale helium gas from balloons to change the pitch of their voice, making it sound squeaky. While many find this amusing, a student argues that this practice is very dangerous because helium can be harmful and may react with other substances in the body. Is the student correct? a) Yes, it is a very reactive gas and will form toxins in the body b) No, it is not reactive and won't cause any harm unless it replaces the supply of oxygen. 34) Organize the following metals in order of decreasing reactivity with dilute acids: Fe, Na, K, Cu a) K, Na, Fe, Cu b) Na, Fe, Cu, K c) Cu, Fe, K, Na 35) This is the hardest natural substance and can be used for drilling a) Iron b) Diamond c) Graphite d) Gold

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