10. Periodic Properties of the Elements

Which of the following is the correct electron configuration for the arsenide ion, As^{3-}?

Which of the following is the correct shorthand electron configuration for a sulfur (S) atom?

Which noble-gas symbol is used in the noble-gas notation for the electron configuration of tin (Sn)?

How many electron shells are present in a neutral cesium (Cs) atom?

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

Which of the following is the correct electron configuration for calcium (atomic number 20)?

Which of the following is the correct electron configuration for tungsten (W)?

Which of the following represents the correct electron configuration for selenium (Se)?

Which of the following orbital diagrams correctly represents the electron configuration for fluorine (F)?

Which of the following is the correct electron configuration for barium (Ba)?

Which of the following is the correct electron configuration for fluorine (atomic number 9)?

Which of the following is the correct electron configuration for the Mn^{2+} cation?

Which of the following is the ground-state electron configuration of the F⁻ ion?

The innermost electron shell of an atom can hold up to how many electrons?

Which of the following is the correct electron configuration for nobelium (No)?