1.What force holds together atoms in compounds? 2. Name a gas that consists of two atoms of the same element bonded together. Do the molecules of this gas represent a compound? Why or why not?

3. Identify at least one property of water that differs from the properties of the elements that form it.

4. Which two elements make up the compound named butane? What is the ratio of these two elements in butane? How would you use chemical symbols to represent butane?

5.What is an element?

6.How much is gold worth today?

7.How many elements did we know about when Tom Lehrer wrote his song?

17 elements

Explanation:

ik i know right

if two electrons have the same n, the same ℓ, and the same ml, then they are in the same orbital. the pauli exclusion principle states that no two identical fermions (a fancy word for electrons and other subatomic particles like electrons) may occupy the same quantum state in an atom simultaneously.

a plasma is a warm ionized gasoline consisting of approximately equal numbers of definitely charged ions and negatively charged electrons. the characteristics of plasmas are notably unique from the ones of ordinary neutral gases in order that plasmas are considered a awesome "fourth kingdom of remember."