Group 1 metals react by losing an electron in their outer shell. Why does their reactivity increase as you go down the group?The outer electron becomes closer to the nucleus so is harder to loseThe outer electron becomes closer to the nucleus so is easier to loseThe outer electron becomes further away from the nucleus so is easier to loseThe outer electron becomes further away from the nucleus so is harder to lose2Why do group 1 metals have to be stored in oil?Because they are valuableBecause they are hazardousTo prevent them from becoming hardTo prevent them from reacting with oxygen3A group 1 metal oxide dissolves in water to form a colourless alkaline solution. How can you confirm this?Bubbles will form on the surface of the solutionThe solution has a sharp smellIt turns limewater cloudy whiteIt turns universal indicator purple4What is produced when lithium reacts with water?Lithium hydroxide plus hydrogenLithium oxide plus hydrogenLithium hydroxideLithium oxide5What would you expect to observe when potassium is added to water?Floats with no reactionSinks with no reactionFloats and fizzes slowlyFloats, fizzes vigorously, moves around quickly and bursts into a lilac flame
Question
Group 1 metals react by losing an electron in their outer shell. Why does their reactivity increase as you go down the group?The outer electron becomes closer to the nucleus so is harder to loseThe outer electron becomes closer to the nucleus so is easier to loseThe outer electron becomes further away from the nucleus so is easier to loseThe outer electron becomes further away from the nucleus so is harder to lose2Why do group 1 metals have to be stored in oil?Because they are valuableBecause they are hazardousTo prevent them from becoming hardTo prevent them from reacting with oxygen3A group 1 metal oxide dissolves in water to form a colourless alkaline solution. How can you confirm this?Bubbles will form on the surface of the solutionThe solution has a sharp smellIt turns limewater cloudy whiteIt turns universal indicator purple4What is produced when lithium reacts with water?Lithium hydroxide plus hydrogenLithium oxide plus hydrogenLithium hydroxideLithium oxide5What would you expect to observe when potassium is added to water?Floats with no reactionSinks with no reactionFloats and fizzes slowlyFloats, fizzes vigorously, moves around quickly and bursts into a lilac flame
Solution
The text you provided seems to be a set of multiple-choice questions related to Group 1 metals in the Periodic Table. Here are the answers:
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The reactivity of Group 1 metals increases as you go down the group because the outer electron becomes further away from the nucleus, making it easier to lose.
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Group 1 metals have to be stored in oil to prevent them from reacting with oxygen. These metals are very reactive and can easily oxidize in air.
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You can confirm that a Group 1 metal oxide has dissolved in water to form a colourless alkaline solution if it turns universal indicator purple. Alkaline solutions have a pH greater than 7, and universal indicator turns purple in these conditions.
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When lithium reacts with water, lithium hydroxide and hydrogen are produced. This is a typical reaction of Group 1 metals with water.
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When potassium is added to water, it floats, fizzes vigorously, moves around quickly, and bursts into a lilac flame. This is due to the high reactivity of potassium with water.
Similar Questions
Explain why the reactivity of group 1 metals increases as you go down the group.
Compared to group 2 elements, group 1 elements:Group of answer choicesAre less reactiveHave smaller atomic radiusHave more valence electronsAre more reactive
Choose two properties of the Group 1 metals:
Give the name of the second least reactive metal in group 1
explain how properties of the elements in Group 1 depend onthe outer shell of electrons of the atoms• predict properties from given trends down the group
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