Sub Shells And Bonds

Question 1

What is spin pairing?

Answer 1

When electrons in the same orbital spin in opposite directions

Question 2

Which sub she’ll has a lower energy than 3D?

Answer 2

4s

Question 3

When does this not happen? Example?

Answer 3

If the 3D shell can be completely filled. Eg: With Fe2+ ion

Question 4

What are electrostatic attractions?

Answer 4

The forces that hold positive and negative ions together

Question 5

Why are ionic compounds soluble?

Answer 5

The polar water molecules pull the ions away from the lattice; dissolving it

Question 6

Why do ionic compounds have high melting points?

Answer 6

They are held together by strong electrostatic forces; which take a lot of energy to overcome

Question 7

What is a dative bond?

Answer 7

When the electrons in the bond come from 1 atom, not both

Question 8

Why do simple molecular compounds have low melting points?

Answer 8

The only thing holding the molecules together is intermolecular charges; which are weak and easy to overcome.

Question 9

Why are simple molecular compounds insoluble?

Answer 9

The polar water molecules are more attracted to each other than the molecular substance

Question 10

What are the first 4 electron sub shell letters, and the maximum number of electrons they can hold?

Answer 10

S=2

P=6

D=10

F=14