List three properties that elements in a group or family might have in common. Give an example to support your explanation. Please Answer in complete sentences

1) how many electrons are in each energy level of the following elements? a. he b. na c. na d. ne 2) how many valence electrons are percent in the following atoms? a. s b. mg c. be d. cl 3) which of the following elements are stable as atoms? a. he b. o c. cl d. ar if you are able to provide the work as to how you got the answers that would be greatly appreciated. : )

Write a paragraph that provides examples of each stage of volcanic activity, a description of the volcano, and facts about each stage.

Which fact represents evidence for the big bang theory?