PERIODIC TRENDS HELP! I've reaserched but i don't understand

[Obee]

1. What is the general trend in boiling point as atomic number increases?
2. Describe the general trend in boiling point across periods 2 & 3. Where do the peaks and valleys occur? 'What anomalies occur?
3. What is the general trend in boiling point going down Group lA? Do you find a similar relationship in the other Groups? What anomalies occur?
.4. What is the general trend in melting point as atomic number increases?
5. Describe the general trend in melting point across periods 2 & 3. Where do the peaks and valleys occur? What anomalies occur?
6. What is the general trend in melting point going down Group 1 A? Do you find a similar relationship in the other Groups" VWhat anomalies occur?

Thanks..