List the three main parts of a mass spectrometer. Describe what happens in each part during the analysis of a sample.

Create a table and complete it with the following information for the elements listed below: the number of electrons in the atom ,the number of valence electrons, whether it will gain or lose electrons (or neither gain nor lose) to become stable, whether it will form an anion or a cation, or neither, the symbols of the ion it forms (neon(Ne),oxygen(O),magnesium(Mg))

Nitrites in meat slow down the growth of bacteria and give the meat a desirable red colour. However, nitrites can form compounds that are carcinogenic. Even if no nitrites are added to meat, they might be present. How can nitrites be present in meat if only nitrates were added to the meat?

Many elements form more than one polyatomic ion with oxygen. Give an example of two or more polyatomic ions that contain the same element and oxygen. Explain why you think this element forms more than one polyatomic ion with oxygen.

What did Rutherford observe in his gold foil experiment? Why did his observations lead him to theorize that atoms have a positively charged nucleus?