Represent the oxygen atom symbolically along with its two isotopes that have 9 and 10 neutrons.

Based on its chemical properties, identify the position of each chemical family on the periodic table.

Astudent is trying to create a table that compares hypotheses, theories, and laws. hypothesis theory law do scientific researchers formulate it? yes yes yes does it explain why things happen? yes yes no yes yes yes is it used to make predictions? no yes yes which of the following questions would most likely fill the blank in the table? is it an intelligent guess? is it newly formulated? is it based on observations? has it been proved?

Once similarity and one difference between a mixture of elements and a mixture of compounds