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What are the similarities and differences between the hydrogen atom 2s and 3s orbitals? a) What are the similarities and differences between the hydrogen atom 2s and 3s orbitals? b) What are the similarities and differences between the 2s orbital and a 2p...

Write the shorthand notation and the orbital diagram electron configuration representation for each of the following elements and indicate the orbital(s) which contain valence electrons: (a) N, (b) K, (c) Cu, (d) Al.

(a) Why does the He atom have a smaller radius than the H atom? (b) Why is the He atom smaller than the Ne atom?

Write the equations that show the processes that describe the first, second, and third ionization energies of a tellurium atom.

For strontium, which quantity will be greater, the difference between I1 and I2, or the difference between I2 and I3? Explain

For each of the following pairs, which element will have the greater metallic character: (a) Li or Be; (b) Li or Na; (c) Sn or P; (d) B or Al?

(a) Arrange the following pairs of covalently bonded atoms in expected order of increasing bond polarity: C-N, P-Cl, I-Cl, and C-O. (b) for each pair, indicate the direction of the polarity of the bond, using the symbol +.