Compared to group 2 elements, group 1 elements:Group of answer choicesAre less reactiveHave smaller atomic radiusHave more valence electronsAre more reactive
Question
Compared to group 2 elements, group 1 elements:Group of answer choicesAre less reactiveHave smaller atomic radiusHave more valence electronsAre more reactive
Solution
Group 1 elements are more reactive compared to Group 2 elements. This is because Group 1 elements have one electron in their outermost shell which is easily lost, making them highly reactive. On the other hand, Group 2 elements have two electrons in their outermost shell, making them less reactive as it is harder to lose two electrons compared to one.
Group 1 elements have a larger atomic radius compared to Group 2 elements. This is because the atomic radius increases down a group due to the addition of energy levels.
Group 1 elements have fewer valence electrons compared to Group 2 elements. This is because valence electrons are the electrons in the outermost shell of an atom. Group 1 elements have one valence electron, while Group 2 elements have two.
So, the correct answer is "Are more reactive".
Similar Questions
Elements belonging to the same group have similar properties becauseThey have a similar electronic configuration of the outermost shellTheir atomic numbers go on increasing as we move down the groupAll of them are metallic elementsNone of the above
) What is the relationship between the group number and the number of valency electrons?
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
Element X is below element Y in the same non-metallic group of the periodic table Aelement X will be more reactive than element YBelement X will be more electronegative than element YCelement Y will be a stronger oxidising agent than element XDboth elements X and Y will form covalent compounds only
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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