Which of the following correctly represents the electron affinity of bromine?

Choose the valence orbital diagram that represents the ground state of Se2-.

Reference Slide:  Low power    Identify the CELLS indicated by the arrow.  Be specific.   

Of the following, which gives the correct order for decreasing atomic radius ?Ca K, As, Ge Kr

Given the data in the table below, ΔH°rxn for the reaction 3Cl2 (g) + PH3 (g) → PCl3 (g) + 3HCl (g)is ________ kJ.

The work function of copper metal is 437 kJ/mol. What is the maximum wavelength of light that can be used to eject electrons from copper?

When the electron in a hydrogen atom moves from n = 6 to n = 1, light with a wavelength of ________ nm is emitted.

How many unpaired electrons are present in the ground state Sn atom?

The element that corresponds to the electron configuration 1s22s22p63s23p64s23d1 is

Which of the following (with specific heat capacity provided) would show the smallest temperature change upon gaining 200.0 J of heat?