Answer:

Explanation:
9 x 9 x 9 x 9 is 9 multiplied by itself four times, so it's 9 to the 4th power as typed above.
A round character is a character we know mostly about, so an example of a scenario would be:
There was once a young girl named Sally, she is very tall, with brown eyes and dark black hair. She loves chocolates but hates sushi. But the one thing she loves the most is her sister Chey
In the short story The Metamorphosis by Franz Kafka he lines reveals that:
Gregor does not want to leave.
The speaker is narrating in the third person concentrating mainly on the feelings, thoughts, and actions of Gregor Samsa in an unchanging and flat tone.
Each column is called a group. The elements in each group have the same number of electrons in the outer orbital. Those outer electrons are also called valence electrons.