10. Periodic Properties of the Elements

How many valence electrons are in a nitrogen (N) atom?

Which of the following elements can have expanded octets in their compounds?

How many valence electrons does a neutral magnesium (Mg) atom have?

For the element arsenic (As), how many electron shells are completely filled in its ground state electron configuration?

How can you determine the number of valence electrons in a main-group element using the periodic table?

How many valence electrons does a neutral potassium (K) atom have?

Which of the following best describes how electrons in the same atom can differ from each other?

How many valence electrons does arsenic (As) have?

Which of the following atoms or ions does NOT have a filled outer subshell?

Which statement best describes the role of valence electrons in the chemical reactions of an element?

Which of the following statements about oxygen is correct?

What is the valence electron configuration for the magnesium atom?

Which of the following best describes an atom's valence electrons?

Which of the following represents the valence electron configuration for a phosphorus (P) atom?

How many valence electrons does magnesium (Mg) have?