Periodic table is confusing ;-; Okay so the group number is supposed to equal to the valence electrons of the elements in said group. But, for example fluorine, has 7 valence electrons even though it's in group 17. I know it's unlikely for a non-metal to have 17 valence electrons, but still I'm quite confused??? Is there some special way to read groups I missed??

water is used to store them because it would keep the radiation from getting out in the open and causing harm to the workers

warm front forms when a moist, warm air mass slides up and over a cold air mass. as the warm air mass rises, it condenses into a broad area of clouds. a warm front brings gentle rain or light snow, followed by warmer, milder weather.

hope i !

it's c (engineer's do their work with mechanical stuff not on any living being)