1) What is an element? a) Made up of 1 type of atom b) Air, water, fire and earth c) Something that is important d) Made up of more than 1 type of atom 2) Protons have a ......... charge and a mass of ............ a) negative, 1 b) positive, 1 c) positive, 0 d) negative, 0 3) The number of neutrons can be calculated by  a) atomic number - mass number b) mass number- atomic number 4) Mass number = a) number of protons + electrons b) number of electrons + neutrons c) number of neutrons + protons 5) An atoms charge is a) Positive b) Negative c) Neutral 6) Group 7 are called? a) Alkali metals b) Halogens c) Noble gases d) Transition metals 7) Alkali metals are group a) 1 b) 2 c) 6 d) 7 e) 8 8) Non- metals are found on the ...... side of the periodic table a) left b) right 9) Compounds contain... a) only 1 type of atom b) a mixture of atoms not chemically joined c) more than 1 type of atom chemically joined  10) What does the valency tell us? a) number of electrons b) number of bonds that can be formed c) what group an element is in 11) Which side of a word equation do the reactants go on? a) left b) right 12) What is the symbol for potassium a) P b) Po c) K d) Kr 13) Exothermic reactions a) give out energy b) take in energy 14) What is the electron arrangement of Silicon a) 2,8,8,4 b) 2,4 c) 2,8,4 d) 2,8,5 15) Which factor does not effect the rate of reactions? a) particle size b) concentration change c) temperature change d) volume of reactants

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