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what is the trend of density down the group in alkali metals. please explain with all exceptions
the density increases down the group in s block elements excpt tht of Na and K it is due to d abnormal increase in size of K.
{size} directly proportional to {volume} inversely propotional to {density}
In alkali metals, atomic volume increases when we go down the group.
You can also conclude this from Lother Meyer's Curve where the atomic volume of Cs>K>Na>Li
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