Atomic Structure End of Topic test
Quiz by Gill
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18 questions
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- Q1Which statement correctly describes chemical compounds?They are listed in the periodic table.They may be formed in reactions involving large energy changes.They are represented by their chemical symbols.They are only formed from metals and non-metals.30s
- Q2Which of the following statements is correct?The symbol for an oxygen atom is O2.The symbol for copper is C.The formula for a chlorine molecule is Cl.There are over 100 symbols for elements.30s
- Q3Which of the following equations represents the balanced equation for the reaction between sodium and chlorine?BDAC30s
- Q4In the apparatus shown on the information sheet, used to separate a mixture of liquids, which of the following is represented by label A?Liebig condenserchromatography paperfractionating columndistillation flask30s
- Q5The process by which common salt is obtained from a hot, concentrated solution of it in water is called:condensationfiltrationdistillationcrystallisation30s
- Q6Mixtures are commonly met in everyday life. Which of these statements is true about mixtures?Mixtures have fixed melting points and boiling points.Mixtures always have fixed compositions.Mixtures do not have chemical bonds between their components.Mixtures must be separated by chemical methods.30s
- Q7As part of a class exercise about fractional distillation, a teacher gave her students a list of compounds and told them to find their boiling points on the Internet. She then told the students to record their boiling points in the most suitable way. What type of graph should the students plot?line graphscatter graphpie chartbar chart30s
- Q8The diagram on the data sheet represents the so-called plum pudding model of the atom. Which of the following statements was believed to be true about this early model?The area labelled B was empty space.The particles labelled A were positively charged.The area labelled B was positively charged.The particles labelled A were neutrons.30s
- Q9Which of the following conclusions about atoms was drawn from the results of the alpha scattering experiment carried out by Rutherford?They had an overall negative charge.They were indivisible particles.They contained protons and neutrons.They were mainly free space.30s
- Q10The electronic structure of an atom of an element is shown on the data sheet. In which group of the periodic table is the element found?387230s
- Q11Which of the following has an overall positive charge?protons and electronsneutrons and electronsThe nucleus of an atommetal atoms30s
- Q12Which of the following statements about atoms is correct? All the atoms of an element have the same number of:neutrons and electronsprotons and electronsprotons and neutronsprotons, neutrons and electrons30s
- Q13An atom of beryllium contains four protons, five neutrons and four electrons. Which of the answers on the answer sheet represents this atom of beryllium?BCAD30s
- Q14Atoms are very small. The radius of an atom is 0.1 nm and the radius of the nucleus of an atom is about 1 × 10–14 m. Choose the option below to form a correct statement. The radius of the atom:and the radius of the nucleus are about the sameis about 100 times the size of the radius of the nucleusis about 1000 times the size of the radius of the nucleusis about 10,000 times the size of the radius of the nucleus30s
- Q15What is the difference between different isotopes of an element?numbers of electronsnumbers of protonsnumbers of neutronschemical properties30s