1) What element is this? a) Carbon dioxide b) Water c) Hydrogen d) Helium e) Lithium f) Carbon 2) What is the charge of a proton? a) +1 b) +2 c) 0 d) -1 e) -2 f) neutral 3) What is the smallest part of an element you can have? a) Particle b) Molecule c) Compound d) Atom e) Substance 4) What is the formula for carbon dioxide and water? a) CO 2 + H2O  b) MgO + H2O c) H2SO4 d) CO2 + H2O e) Calcium carbonate 5) Two or more chemicals that can be easily separated a) A compound b) An element c) A mixture d) A substance e) A particle f) A formulation 6) True or false, there are chemical bonds between the different parts of a mixture. a) True b) False 7) What method could you use to separate the different dyes in an ink? a) Distillation b) Filtration c) Crystalisation d) Chromatography e) Decanting f) Centrifugation 8) What is the pattern called which is formed when you separate the dyes in an ink? a) Cat scan b) Chromatogram c) Solvent d) solvent front e) rf value 9) What method would you use to separate a soluble solid from a solution? a) Filtration b) Decanting c) Rock salt d) Chromatography e) Crystalisation f) Dissolving 10) What is the electron configuration of calcium? a) 2 b) 2,1 c) 2,4 d) 2,8,10 e) 2,8,8,2 f) 2,8,8,8 11) What does an element's group number tell you about its electrons? a) How many neutrons it has b) How many protons c) How many electrons it has d) How many electrons in the outer shell e) Its size f) How it reacts 12) How is the modern periodic table arranged? a) in increasing reactivity b) in increasing size c) in increasing atomic number d) alphabetically e) by decreasing reactivity f) by colour 13) Why are group 0 unreactive? a) They are noble gases b) They do not easily lose or gain electrons c) They form ions d) They are too large e) They need energy f) They have not been discovered yet 14) Chlorine is added to sodium bromide. What is made? a) Sodium chloride and bromine b) Sodium chloride and iodine c) Sodium hydroxide and bromine d) bromine hydroxide and chlorine e) bomine chloride f) sodium bromide 15) Which element has the electronic configuration of 2.4? a) Calcium b) Carbon c) Hydrogen d) Lithium

Atomic Structure Quiz

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