Refer to the Lewis dot diagrams below

Who is better, messi or cristiano, i need this for a chemistry class. asap

What’s the scientific notation for the number 6,840,000,000

Which statement correctly identifies the scientific question and describes why the question is scientific? question 1 refers to the supernatural.question 2 reflects a moral or social value.question 3 refers to something that can be measured.question 4 reflects a question that can’t be observed.