The formula is the combination of chemical symbols and numbers that represent the elements and number of atoms within a compound.

This graph gives information on changes in sea ice extent in the arctic ocean over a 30-year span. the overall trend shows in the ice extent. to address the trend, scientists need to ask themselves, one direct consequence of the trend is that

Which statement is best described as a atom

Using the periodic table, complete the table to describe each atom. type in your answers