The electronic configuration for Br is 1s22s22p63s23p14s23d104p5. The valence configuration for Br is  

What’s the empirical formula for N2O5?

What’s the empirical formula for P4O10?

The electronic structure of the potassium atom is [Ar]4s1. The electronic structure of the potassium cation is  

The electronic structure of the chlorine atom is [Ne]3s23p5. The electronic structure of the chloride anion is  

The systematic name for the compound Ru3(PO4)2 is    

1. Write electron configuration of Mo3+ by filling number of electrons in each orbital.  Write orbital symbol first, followed by number of electrons in [  ] (e.g., electron configuration for O would be 1s[2]2s[2]2p[4]).  Condensed form of electron configuration is accepted. 2. How many unpaired electrons does Mo3+ have ? (must have correct electron configuration above to get credit)

An infrared light has a wavelength of 51500 nm, find the energy of a photon of this light in joules? E=h

How many nitrogen atoms are there in 10 molecules of N2H4?

According to the Bohr model, hydrogen atom releases light when