electron structure of atoms (6.7-6.9)

Question 1

What is in the quantum number N?

Answer 1

1,2,3 (principle)

Question 2

What is in the quantum number L?

Answer 2

0,1,2,2…., n-1 (angular moment)

Question 3

What is in the quantum number mL?

Answer 3

-L…, 0,1,2,3…. +L (magnetic, orientation)

Question 4

What is in the quantum number mS?

Answer 4

-1/2 or +1/2

Question 5

Which orbital shell fills up first, 3D or 4S

Answer 5

4S

Question 6

What is electron configuration?

Answer 6

The way electrons are distributed in an atom

Question 7

What is ground state?

Answer 7

The most stable arrangement of electrons

Question 8

What does the N mean in subshell electron configuration?

Answer 8

A number denoting the energy level

Question 9

What does the letter L mean for subshell electron configuration?

Answer 9

A letter denoting the type of orbital

Question 10

Energies of subshells

Answer 10

Ns<Np<Nd<Nf

Question 11

What is Hund’s Rule?

Answer 11

Every orbital in a subshell is singly occupied with one electron before any one orbital is doubly occupied
, and all electrons in singly occupied orbitals have the same spin.

Question 12

What is a valance electron?

Answer 12

elements in the same group (column) of the periodic table have the same number of electrons in the outer most shell.

Question 13

What is a core electron?

Answer 13

The filled inner shell of electrons. These include completely filled d or f sub shells