1. Tone: the attitude a writer/speaker/narrator expresses toward his/her subject matter and audience.
Tone is described in adjectives that express emotion or manner (compassionate or judgmental, scornful or reverent, formal or casual, arrogant or flattering, serious or ironic, irate or serene, confident or timid, etc.)

2. How does TONE lead to MOOD?
After determining the attitude of the author or speaker, you should then consider how the tone makes the reader feel. This is called the mood.
Mood: the atmosphere created by the emotions that you feel while you are reading.