The cards Question What are the Group 0 elements called? Tap to flip Answer Noble gases (also called inert gases). Question What does it mean if a substance is inert? Tap to flip Answer It is not chemically reactive. Question How can the outer electron shells of Group 0 elements be described? Tap to flip Answer As full (or empty) outer electron shells. Question How do density and boiling point change moving down Group 0? Tap to flip Answer Both increase. Question What do noble gases do when a high voltage is applied across them? Tap to flip Answer They emit coloured light, and they do not decompose. Question Why were the noble gases given that name? Tap to flip Answer They are so unreactive: with a full outer shell of electrons they did not need to bond with other elements. Question What are the alkali metals? Tap to flip Answer The elements in Group 1 of the periodic table, which react with water to form strongly alkaline hydroxides. Question How does reactivity change down Group 1? Tap to flip Answer It increases. Question How do atomic mass, density and melting point change moving down Group 1? Tap to flip Answer They increase. Question In chemical reactions, how many outer electrons does a Group 1 atom lose? Tap to flip Answer One, leaving full electron shells. Question Going down Group 1, how does the force attracting the outer electron to the nucleus change? Tap to flip Answer It becomes weaker: the outer electron is attracted with less force. Question What colour are the solutions of alkali metal hydroxides? Tap to flip Answer Colourless. Question What kind of solution do Group 1 metals produce when they react with water? Tap to flip Answer An alkaline solution. Question What are the halogens? Tap to flip Answer Reactive non-metallic elements in Group 7 of the periodic table, which react with metals to form salts. Question How does reactivity change down Group 7? Tap to flip Answer It decreases. Question How do atomic mass, density, melting point and boiling point change moving down Group 7? Tap to flip Answer They increase. Question In chemical reactions, how many electrons does a Group 7 atom gain? Tap to flip Answer One, making just full electron shells. Question Going down Group 7, why does the force attracting an extra electron get smaller? Tap to flip Answer Because each outer shell is further from the nucleus. Question What is the difference between a halogen and a halide? Tap to flip Answer Halogens are elements; halides are salts formed from halogens, e.g. sodium chloride. Question What does it mean for an element to be diatomic? Tap to flip Answer It consists of two atoms of the same type chemically bonded together. Question Halogens exist as what kind of molecules? Tap to flip Answer Diatomic molecules. Question What is a salt? Tap to flip Answer An ionic compound formed from positive and negative ions that are electrostatically attracted to each other. Question What kind of solution do halogens form when dissolved in water? Tap to flip Answer An acidic solution. Question Which halogen can displace another halogen from a compound? Tap to flip Answer A more reactive halogen can displace a less reactive one. Question Give one group of metals that Group 7 elements react with to form salts. Tap to flip Answer Group 1 or Group 2 metals. Question What does the chemical test for chlorine involve? Tap to flip Answer Passing the gas over damp blue litmus paper. Question In a halogen displacement reaction, what colour does the solution turn when iodine is displaced? Tap to flip Answer Brown (the darkest colour change). Question In a halogen displacement reaction, what colour does the solution turn when bromine is displaced? Tap to flip Answer Orange. Where this deck sits in the curriculum Curriculum National Curriculum for England Stage GCSE (Years 10–11) Course GCSE Chemistry Unit Groups of the periodic table Exam boards AQA, Edexcel, OCR Tiers foundation and higher England's National Curriculum sets what is taught; the units and their order are Oak National Academy's. Flash Feed is not affiliated with Oak or any exam board.
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A Chemistry lesson by Oak National Academy licensed under Open Government Licence (OGL)
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