reading groups as columns, periods as rows – yaar, it's just a table, start top left like any book. atomic size decreases across a period 'cause more protons pull electrons in tighter, but increases down a group as new shells add up. metallic character? opposite trend – stronger nuclear charge across makes it harder to lose electrons, so less metallic.
and i'm only seeing this clearly at 2 am, because the afternoon power cut wiped my online lecture buffer – bas, now the rote memorization in this dim light is the only thing that sticks.
#exams#study
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