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sara12345
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as we move from left to right across a period
how density changes
 one year ago
 one year ago
sara12345 Group Title
as we move from left to right across a period how density changes
 one year ago
 one year ago

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sara12345 Group TitleBest ResponseYou've already chosen the best response.0
1. increases 2. decreases 3. remains constant 4. no particular trend
 one year ago

UnkleRhaukus Group TitleBest ResponseYou've already chosen the best response.0
density is mass per unit volume
 one year ago

.Sam. Group TitleBest ResponseYou've already chosen the best response.1
Density increases. Atomic radius decreases from left to right across a period because: 1) Electrons are being "added" into the same shell, (you know that the shell number doesn't increase across a period) 2) The proton number and number of electrons increases across a period, this causes greater attractive force between positive and negative charges, resulting in decrease in atomic radius as mass increases, therefore greater density.
 one year ago

sara12345 Group TitleBest ResponseYou've already chosen the best response.0
mass increases but radius decreases since d = m/V density increases i get it thank you very much !
 one year ago

UnkleRhaukus Group TitleBest ResponseYou've already chosen the best response.0
i do not agree with options 1,2,3,4
 one year ago

sara12345 Group TitleBest ResponseYou've already chosen the best response.0
but the right side we have gases but here i think they're asking only for atom i hope, not the molecule level
 one year ago

UnkleRhaukus Group TitleBest ResponseYou've already chosen the best response.0
http://periodictable.com/Properties/A/Density.st.html
 one year ago

sara12345 Group TitleBest ResponseYou've already chosen the best response.0
oh it shows left and right groups have least density
 one year ago

sara12345 Group TitleBest ResponseYou've already chosen the best response.0
some trend still exists, as we move from left to right, s>p>d, upto the last group in d block, the density is increasing
 one year ago

sara12345 Group TitleBest ResponseYou've already chosen the best response.0
looks nonmetals have less density again breaking the general increasing density trend
 one year ago
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