Among the elements of the main group, the first ionization energy increaseso from left to right across a period. o from right to left across a period. o when the atomic radius increases. o down a group

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 )

Ahypothesis must be testable and falsifiable to be considered scientific a. trueb. false

What is the approximate vapor pressure when the gas condenses at 70 degrees celsius