A nonmetal in the same group as Pb

Which of the following is not one of the steps in the scientific method a. hypothesize b. summarize c. analyze d. familiarize

What is a substance? a. a physical property of matter b. a chemical property of matter c. an element or compound that cannot be physically separated d. characteristics used to tell the difference between mixtures

The lewis diagrams for magnesium and fluorine are shown below. what is the correct chemical formula for magnesium fluoride? a. mgf b. mg2f c. mgf2 d. mg2f3