Which one of the following explains why potassium is more reactive than lithium?• The outer electron in potassium is closer to the nucleus and is shielded by fewer inner shells of electrons.•This means there is a stronger attraction between the positively charged nucleus and the negatively charged outer electron.•This makes it easier for potassium to lose its outer electron compared to lithium.• The outer electron in potassium is further away from the nucleus and is shielded by more inner shells of electrons.• This means there is a weaker attraction between the positively charged nucleus and the negatively charged outer electron.• This makes it easier for potassium to lose its outer electron compared to lithium.• The outer electron in lithium is further away from the nucleus and is shielded by more inner shells of electrons.• This means there is a weaker attraction between the positively charged nucleus and the negatively charged outer electron.• This makes it easier for lithium to lose its outer electron compared to potassium.
Question
Which one of the following explains why potassium is more reactive than lithium?• The outer electron in potassium is closer to the nucleus and is shielded by fewer inner shells of electrons.•This means there is a stronger attraction between the positively charged nucleus and the negatively charged outer electron.•This makes it easier for potassium to lose its outer electron compared to lithium.• The outer electron in potassium is further away from the nucleus and is shielded by more inner shells of electrons.• This means there is a weaker attraction between the positively charged nucleus and the negatively charged outer electron.• This makes it easier for potassium to lose its outer electron compared to lithium.• The outer electron in lithium is further away from the nucleus and is shielded by more inner shells of electrons.• This means there is a weaker attraction between the positively charged nucleus and the negatively charged outer electron.• This makes it easier for lithium to lose its outer electron compared to potassium.
Solution
The correct explanation for why potassium is more reactive than lithium is:
"The outer electron in potassium is further away from the nucleus and is shielded by more inner shells of electrons. This means there is a weaker attraction between the positively charged nucleus and the negatively charged outer electron. This makes it easier for potassium to lose its outer electron compared to lithium."
This is because reactivity in metals increases down a group in the periodic table. Potassium is below lithium in the periodic table, meaning it has more energy levels or shells. These additional shells shield the outer electron from the pull of the positively charged nucleus, making it easier for the electron to be lost and thus increasing the reactivity of the metal.
Similar Questions
Which one of the following explains why lithium is less reactive than sodium?• The outer electron in sodium is closer to the nucleus and is shielded by fewer inner shells of electrons.• This means there is a stronger attraction between the positively charged nucleus and the negatively charged outer electron.• This makes it harder for sodium to lose its outer electron compared to lithium.• The outer electron in lithium is closer to the nucleus and is shielded by fewer inner shells of electrons.• This means there is a stronger attraction between the positively charged nucleus and the negatively charged outer electron.• This makes it harder for lithium to lose its outer electron compared to sodium.• The outer electron in lithium is further away from the nucleus and is shielded by more inner shells of electrons.• This means there is a weaker attraction between the positively charged nucleus and the negatively charged outer electron.• This makes it easier for lithium to lose its outer electron compared to sodium.I DON'T KNOWSUBMIT ANSWER
Explain why sodium is more reactive than Lithium
As you down the group from lithium to potassium, the outer electron gets further away from the nucleus.Which one of the following statements is true?The attraction between the positively charged nucleus and negatively charged outer electron increases as you go down the group.The attraction between the positively charged nucleus and negatively charged outer electron decreases as you go down the group.The attraction between the positively charged nucleus and negatively charged outer electron does not change as you go down the group.
Lithium, sodium and potassium are all Group 1 elements. Determine which is the most reactive. LithiumSodiumPotassiumQuestion 10SavedExplain why you selected this element as the most reactive of the three. Try to use the terms trend, atomic radius and valence electron in your answer.
How are sodium (Na) and potassium (K) similar?A.They rarely react.B.They are highly reactive.C.They are soft nonmetals.D.They are hard metals.
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