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Reactivity Quick Check1 of 51 of 5 ItemsQuestionWhich element would have the lowest electronegativity? (1 point)Responsesan element with a large number of valence electrons and a small atomic radiusan element with a large number of valence electrons and a small atomic radiusan element with a small number of valence electrons and a small atomic radiusan element with a small number of valence electrons and a small atomic radiusan element with a small number of valence electrons and a large atomic radiusan element with a small number of valence electrons and a large atomic radiusan element with a large number of valence electrons and a large atomic radiusan element with a large number of valence electrons and a large atomic radiusSkip to navigation

Reactivity Quick Check2 of 52 of 5 ItemsQuestionWhich elements on the periodic table are the least reactive? (1 point)Responsesthe group with hydrogen at the topthe group with hydrogen at the topthe group with carbon at the topthe group with carbon at the topthe group with fluorine at the topthe group with fluorine at the topthe group with helium at the topthe group with helium at the topSkip to navigation
Reactivity Quick Check3 of 53 of 5 ItemsQuestionHow are reactivity and electronegativity related?(1 point)ResponsesAn element will be less reactive if it has a very high or very low electronegativity.An element will be less reactive if it has a very high or very low electronegativity.Elements with higher electronegativity are more reactive than elements with lower electronegativity.Elements with higher electronegativity are more reactive than elements with lower electronegativity.An element will be more reactive if it has a very high or very low electronegativity.An element will be more reactive if it has a very high or very low electronegativity.Elements with lower electronegativity are more reactive than elements with higher electronegativity.Elements with lower electronegativity are more reactive than elements with higher electronegativity.Skip to navigation
Reactivity Quick Check4 of 54 of 5 ItemsQuestionWhich element listed would have the greatest electronegativity?An illustration shows the periodic table of elements.(1 point)ResponseslithiumlithiumfluorinefluorineboronboroncarboncarbonSkip to navigation
Reactivity Quick Check5 of 55 of 5 ItemsQuestionWhich elements would react most easily with each other? (1 point)Responsesan element with a high electronegativity and an element with a single valence electronan element with a high electronegativity and an element with a single valence electronan element with a high electronegativity and an element with low reactivityan element with a high electronegativity and an element with low reactivityan element with a high electronegativity and a second element with a high electronegativityan element with a high electronegativity and a second element with a high electronegativityan element with a high electronegativity and an element with a full shell of electronsan element with a high electronegativity and an element with a full shell of electronsSkip to navigation

1 answer

Here are the answers to each of the quick check questions:

  1. Which element would have the lowest electronegativity?

    • Response: an element with a small number of valence electrons and a large atomic radius.
    • Explanation: Elements with a small number of valence electrons (like alkali metals) and larger atomic radii tend to have lower electronegativity because they hold on to their electrons less tightly.

  2. Which elements on the periodic table are the least reactive?

    • Response: the group with helium at the top.
    • Explanation: Noble gases (like helium) are the least reactive elements because they have full valence electron shells.

  3. How are reactivity and electronegativity related?

    • Response: An element will be more reactive if it has a very high or very low electronegativity.
    • Explanation: Elements with very high electronegativity (like halogens) or very low electronegativity (like alkali metals) tend to be more reactive.

  4. Which element listed would have the greatest electronegativity?

    • Response: fluorine.
    • Explanation: Fluorine is the most electronegative element on the periodic table.

  5. Which elements would react most easily with each other?

    • Response: an element with a high electronegativity and an element with a single valence electron.
    • Explanation: A highly electronegative element (like a halogen) will readily react with an element that has a single valence electron (like an alkali metal) to form compounds.

Feel free to ask if you need further clarification on any of these topics!