A few quick questions

[Lou1024]

Hey everyone,
First time posting here, I have a few questions for General Chemisty:
1. What is the probability that an electron will be found within an atomic orbital?
2. How many many energy sublevels are contained in each of the hydrogens atom's first three energy levels?
3. Which if the following atomic orbitial designations are incorrect:
a. 7f b.3f. c.2d d.6p
Any help is appreciated,
Thanks,
Lou