printable periodic table with mass charges ions

And for magnesium, the ion has 2 more protons that the magnesium atom. What is the difference between the sodium atom and the sodium ion? The magnesium atom and the magnesium ion? The oxygen atom and the oxygen ion? _The difference between the sodium atom and sodium ion is that the sodium ion has 2 more protons that the sodium atom. Cheryl Coolidge, Colby-Sawyer College in 1. Cheryl Coolidge, Colby-Sawyer College in The diagrams below show atoms and ions formed by several elements. _I think you can find the number of neutrons by subtracting the protons by electrons._ _ _ _ KEEP GOING! Written by Dr. Why do you think the atomic mass is NOT a whole number in the periodic table, and how can you calculate the number of neutrons in an element from these decimal atomic weights? (We’ll learn how these weights are determined shortly.) _I think it’s cause they are measuring the averages of the isotops. Neutrons don’t exist as fractions, yet for sodium, the difference between the atomic mass and the atomic number is 11. _the atomic number is always on top of the element._ _ 3. Using your periodic table, how can you be certain that you always pick the “right” number for the atomic number? Come up with a rule to help you distinguish which of the two numbers with the symbols of the elements is the atomic number. Which number is the atomic number (Z)? The atomic mass? _atomic number is 11. For example, your text represents sodium as: 11 Na 22. In some periodic tables, the atomic symbols are represented a little differently than in the exercise we have just completed. Cheryl Coolidge, Colby-Sawyer College in Please use the periodic table on the first sheet, or in your chemistry book to answer these questions. Introduction to the periodic table Written by Dr. Learning Objectives  Be able to identify an element as a metal, nonmetal, or semimetal based on its position in the periodic table  Predict the type of ion an element will form  Identify the numbers of protons, neutrons, and electrons in an ion Concepts and vocabulary  By understanding the types of ions formed by the elements, it is possible to predict the correct chemical formulas of ionic compounds.  Ions are particularly important in the formation of “ionic compounds”. Activity 5: Ions and the Periodic Table Why?  Ions, like atoms, may also be identified by the numbers of protons, neutrons and electrons they contain.

Printable periodic table with mass charges ions