In this punnett square what is the ratio of homozgous to heterozygous offspring? in the punnett square what percentage of the offspring are homozygous recessive?

since the atomic number is the number of protons in the nucleus, as we move to the left on the periodic table, the electrostatic pull between the nucleus and the valence electron shell decreases. as we move down a group (vertical column), the valence shell energy level gets further and further from the nucleus.