Scrieti configuratia electronica pt urmatoarele elemente: H, He, Be, C, N, O, Ne, Na, Al, Ar.
Precizati pt fiecare element cate straturi, cati orbitali si cati electroni are pe ultimul strat.

Acalorimeter is to be calibrated: 51.203 g of water at 55.2 degree c is added to a calorimeter containing 49.783 g of water at 23.5c. after stirring and waiting for the system to equilibrate, the final temperature reached is 37.6 degree c. specific heat capacity of water (s = 4.18 j/g∙degree c). calculate the calorimeter constant. (smδt)warm water = -[(smδt)cold water + (calorimeterδtcold water)]