Todd and Angela set up a ramp and released several cars from the top. If Todd and Angela want to
determine the average speed of their cars down the ramp, what information do they need?

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When determining the shape of a molecule, it is important to draw a lewis dot structure first in order to see the total number a. electrons within the moleculeb. bonding and unshared pairs around central atomc. unshared pair within the molecule( i really need it )

Consider the elements bromine and chlorine; which elements has a larger ionic radius ?