How many valence electrons are in an atom with the electron configuration in example a? example a: 1s22s22p63s23p64s24p2 a: 22 b: 2 c: 4 d: 6

6 I think because is a subject that I just started

d:6 is the answer i got it right on my test

the genotypes would be 50% bb and 50% bb

the phenotypes would be 50% brown and 50% white. hope this : )

a time line cause it goes from 685 to 978