Potassium is placed where it is based on its properties and it's reactivity. It's also placed there based on it's atomic number.
Answer:
No
Explanation:A single property is insufficient for identifying a substance
D, because when you have one recessive and one dominant allele, then the dominant one will always over power the recessive. That's why the majority of people have brown eyes, it's because brown eyes are a dominant trait whereas blue or green eyes are recessive.