Word fill Questions on Group 1 ALKALI METALS (GCSE level @ doc brown's chemistry)

   +1      1      14      7      alkali      boiling      chlorine      cold      colourless      density      down      explosion      faster      fizzing      flame      float      floats      green      hydrogen      hydroxide      hydroxides      ionic      lithium      low      lower      melting      more      Na2O      NaCl      NaOH      purple      sodium      soft      universal      white      yellow   
Q1(a) The elements in Group of the periodic table are known as the metals because they form oxides or which dissolve in water to give alkaline solutions.
(b) They are metals with density and the first three in the Group are less dense than water, and so .
(c) They have unusually low points and the solids are quite .
Q2(a) They react with non-metals such as oxygen and to form compounds in which the metal ion carries a charge of .
(b) These salt-like chloride compounds are solids which dissolve in water to form neutral solutions of pH .
(c) The oxides dissolve in water forming the hydroxide solution of pH .
(d) The formula for sodium chloride is , sodium hydroxide is and sodium oxide is .
Q3(a) The Alkali Metals react exothermically with water releasing and forming soluble alkaline hydroxides.
(b) When a piece of , sodium or potassium is placed in water the metal because of its low .
(c) It and may melt and move around the surface with lots of . The more reactive the metal, the the reaction with water.
(d) A simple laboratory test for the gas is that when a test tube of the gas is held to a the gas burns in the air with a squeaky .
(e) During the reaction indicator will turn from to .
eg sodium + water ==> +
Q4 In Group 1, the further the group the reactive the alkali metal and the its melting point and point.
Q5 Whem heated in a flame sodium metal or sodium compounds give a flame colour and potassium metal or its compound give a colour in a hot flame.