Laws and principles?

Question

Which one of the following applies:
a) Heisenberg uncertainty principle
b) Pauli exclusion principle
c) Hund's rule (principle of maximum multiplicity)
d) Shielding effect
e) Wave nature of matter

1. Can be used to predict that a gaseous carbon atom in its ground state is paramagnetic
2. Explains the experimental phenomenon of electron diffraction
3. Indicates that an atomic orbital can hold no more than 2 electrons
4. Predicts that it is impossible to determine simultaneously the exact position and velocity of an electron

Answer 1

Was this " Laws and Principles" copied verbatum from a text book? Reads very much like it was. If that be the case you have a bit of research to do starting immediately. Once you understand what was written you will have the course "knocked".

Answer 2

1.c- hunds rule
2.e -wave nature of matter
3.b-pauli exclusion principle
4. a -hesisenbergs un certainity princleple

Answer 3

1 d
2 e
3 c
4 a