So on looking at a periodic table, why do the trends below appear, based on their nuclear charge and electron shielding? I know how the trend goes (e.g. Atomic size generally increases down a group to the left), but why does the trend occur? Also note any deviance from those trends.
Atomic Size...
Okay, so I know how to make a fireball, with the thread and cotton and lighter fluid. But for a chemistry project, I need to know how this works chemically. I just need answers to these questions: Why does the fire not burn your hand? How come the substrate burned has to be cotton? Is there a...