Someone who occupies a key role in the design, construction, and management of chemical operations to insure and improve the quality of life for people in and outside the plant is a(n)

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. : )

Which of the following compounds does not contain molecules? question 2 options: co2 h2 nacl h2o

Needthe meter is the standard unit for: 1) height 2) length 3) weight 4) mass