10. Periodic Properties of the Elements

Which atom in the ground state has a valence electron with the greatest amount of energy?

What is the significance of carbon having four valence electrons?

How many valence electrons does fluorine have?

An atom has 15 total electrons. How many electrons does it have in its outer (valence) shell?

Which of the following best describes valence electrons?

How many valence electrons does an oxygen atom have?

How many valence electrons does an atom of nitrogen (N) have?

How many electrons are required to completely fill the first energy level (n = 1) of an atom?

Krypton has 8 valence electrons. What is true about krypton?

Oxygen has a total of eight electrons. How many valence electrons does an oxygen atom possess?

How many electrons must barium (Ba) lose to achieve a noble-gas electron configuration?

How many valence electrons does a chlorine atom have?

Where are the valence electrons located in an atom?

What is the total number of outer (valence) electrons present in a molecule of carbon dioxide (CO_2)?

How many valence electrons does the element phosphorus (P) have?