1) Group 1 elements are also known as a) Noble gas b) Alkaline earth metals c) Halogen d) Alkali metals 2) Arrange the elements in group 1 from the top to bottom of the group. a) Li, Na, K, Fr, Rb, Cs b) Li, Na, K, Rb, Cs, Fr c) Li, Na, K, Rb, Fr, Cs d) Fr, Cs, Rb, K, Na, Li 3) Group 1 elements only form ….. Ion a) 1+ b) 2+ c) 1- d) 2- 4) What gas is given off when group 1 elements reacts with water? a) Hydrogen b) Carbon dioxide c) Oxygen d) Helium 5) When a group 1 element reacts with water, a hydroxide is formed. What colour would Universal Indicator turn in this solution? a) Green b) Yellow c) Blue d) Red 6) How many electrons are in the outer shell of group 1 elements? a) 0 b) 1 c) 2 d) 3 7) Why does the reactivity of group 1 elements increases down the group? a) It becomes more reactive b) It becomes easier to lose an electron c) It becomes easier to accept an electron d) It becomes less reactive 8) Q and R are two elements located in the same group. The proton number of Q is 9. What is the possible electron arrangement of atom R? a) 2.8.7 b) 2.8.8.1 c) 2.8.8 d) 2.8.8.4 9) What is the factor that determines the chemical properties of an element? a) The number of electron shells b) The number of electrons in the outermost shell c) The number of electrons in the innermost shell d) The number of neutrons in the nucleus 10) The following statements describe the characteristics of an element: - has an electron configuration 2.8.7, - a greenish-yellow gas at room temperature, - exists as a diatomic molecule. This element is probably a) sodium b) bromine c) neon d) chlorine 11) Element X dissolves in water to produce a solution that turns the blue litmus paper red and then decolourised. What is element X? a) Sodium b) Sulphur c) Neon d) Bromine 12) An element V has a proton number 9 and W has a proton number 17. Which of the given statement is true? a) Both V and W can conduct electricity b) The atomic size of V is bigger than W c) V and W are diatomic d) W is more reactive than V

Group 1 & 17 quiz

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