10. Periodic Properties of the Elements

How many electrons are present in a neutral atom of zirconium (Zr)?

Which element has the electron configuration 1s^2 2s^2 2p^6 3s^2 3p^6 4s^2 3d^5?

How many p electrons are present in a neutral atom of antimony (Sb)?

Which of the following represents the noble gas electron configuration of titanium (Ti)?

Which of the following is the correct electron configuration for a neutral sodium (Na) atom?

Which of the following elements has an electron configuration of [Kr] 5s^2?

What is the electron configuration of chlorine (Cl)?

How many electrons can occupy the second energy level (n = 2) of an atom?

Which of the following is the correct electron configuration for boron (atomic number 5)?

Which electron configuration represents the element carbon (atomic number 6)?

Which of the following is the correct ground-state electron configuration for an atom with 104 electrons?

Which of the following is the full electron configuration for titanium (Ti)?

Which of the following electron configurations correctly represents a neutral nitrogen atom?

Which of the following is the correct electron configuration for technetium (Tc, atomic number 43)?

In an atom of hydrogen, where is the highest-energy electron located?