What is the atomic number and weight of Potassium? I want the approximate weight. Also, what type of element is it?

Atomic Number: 19

Approximate Weight: 39.10 g/mol

Element: Alkali Metal

Explanation:

The Periodic Table of Elements gives these 3 information already.

the correct answer is:

a. formation of precipitation

the answer is b because, investigating whether another species of moth also drinks tears might be interesting, but it would not directly explain why this species of moth does.

to explain why this species of moth drinks tears, the scientist could ask: "what nutrients that moths need are in elephant tears? "

the scientist could experiment with moth repellent or oter ways to keep the moths away, but that would not answer his original question.