Element x has five valence electrons element why has one valance electron an element z has one valance electron which two of these elements are most likely to have similar properties explain your answer

Element Y and Z

Explanation:

The valence is related to the number of electrons needed or that are too much to have the last level of the complete atom. In the case of valence 1 (elements y, z) corresponds to group I (alkali metals such as sodium, potassium, lithium). Taking into account Valencia 5, corresponds to group 15 (Nitrogen, Phosphorus, among others), where they require 3 electrons to complete their octet.

the offspring would all be white. if the parents are both white flowers then they have the genotype rr, which when crossed results in an all white punnet square.