The electron configuration 1s^2 2s^2 2p^6 3s^2 describes the electrons of which element?
sodium
manganese
phosphorus
magnesium

How do you lengthen a pattern piece? (family and consumer science, sewing)

Will mark brainliest how many electrons can be held in the energy level n = 4?

2-bromo-2-methylbutane undergoes an e1 elimination reaction in the presence of ethanol. in the next reaction only one of the possible products is represented. although the product shown is not the major product of the reaction, notice that there is more than one way it can be produced. complete the mechanism and draw the missing substances.