10. Periodic Properties of the Elements

Phosphorus has an atomic number of 15. How many valence electrons does a neutral phosphorus atom possess?

What is the total number of valence electrons in a molecule of SO_2?

How many unpaired electrons does a sulfur (S) atom have in its ground state electron configuration?

How many electrons are present in the second principal energy level (n = 2) of a neutral phosphorus atom?

How many bonding electrons does a fluorine atom have in its ground state?

How many valence electrons does a nitrogen atom have?

How many valence electrons are present in a neutral atom of sulfur (S)?

How many electrons are present in the outermost shell of a Ga^{3+} ion in its ground state?

Which of the following elements has the fewest valence electrons?

Which electrons are considered valence electrons in the electron configuration of cobalt (Co)?

Which of the following represents the valence electron configuration for a sulfur (S) atom?

How many valence electrons do noble gases typically have?

How many valence electrons does a sodium (Na) atom have?

How many electrons can the first energy level (n = 1) of an atom hold?

How many valence electrons does a fluorine atom have?