electronconfiguration

Name: Date: STEM Middle Academy – 8th Grade Science – Mr. Condon Block: Electron Configuration Practice
 * 1) How many protons occur in an oxygen atom?


 * 1) Since the number of electrons is equal to the number of protons, how many electrons are found in an oxygen atom?


 * 1) The outermost electrons are called the  electrons. These electrons are the most important, because they allow atoms to


 * 1) Since oxygen is in row 2 of the periodic table, its valance electrons have what energy level?


 * 1) Oxygen is found in the fourth column of the  section of the periodic table.


 * 1) Combining question 4 and 5, the valance electron configuration for oxygen would be?


 * 1) Every element, except Hydrogen, starts its electron configuration with


 * 1) In the electron configuration 1s2, identify the meaning of:
 * 1:
 * S:
 * 2:


 * 1) What is the complete electron configuration of Oxygen from start to its valance electrons?


 * 1) Write the electron configuration for the following:


 * 1) Sodium:


 * 1) Boron


 * 1) Argon


 * 1) Helium


 * 1) Hydrogen