For the a groupse (groups 1a to 8a) how does the group number relate to the electron arrangement in atoms of the group

the group number is equal to the number of valance electrons

good luck!

a pan containing water is placed in a positio n where it is exposed to a 10 mile per hour wind. the pan contains a uniform depth of 1.27 cm of water, is quite wide, and has a length of 2.44 m in the wind direction. the water in the pan is at a constant temperature of 15.5 °c.