[ Chemistry ] Open Question : Can Anybody Help Me Pass CHEM?!?

1.) Determine the frequency of light with a wavelength of 2.072 × 10?7 cm (answer in units of Hz) 2.) Determine the energy of a photon whose frequency is 7.49 × 1017 Hz (answer in units of J) 3.) Given the speed of light as 3.0 × 108m/s, calculate the wavelength of the electromagnetic radiation whose frequency is 9.7 × 1012 Hz (answer in units of m) 4.) What is the correct electronic configuration of magnesium, Mg? 5.) What is the maximum number of electrons in a p-type energy sublevel? 6.) Depict the electron configuration for silicon using rare gas (shorthand) notation. 7.) What is the electron configuration for the oxygen atom? 8.) The electronic configuration for the element sodium (atomic number 11) has only a. one electron in the 3s level. b. one electron in the 2d level. c. one electron in the 3p level. d. one electron in the 2p level. 9.) What is the electronic configuration of the element with atomic number 20? 10.) What is the electronic configuration of calcium (Ca)? 11.) Which element is located in the family represented by n s2 n p3? a. sulfur b. carbon c. nitrogen d. sodium 12.) Write the electron configuration for P 13.) Radio station KLBJ broadcasts at a frequency of 93.7×106 s?1. Determine the length of the waves that corresponds to this frequency. a. 2 × 10^-8 m b. 93.7 m c. 2 nm d. 3.20 m e. 3.20 nm 14.) How much energy does a photon with a wavelength of 1050 nm have? 15.) A neutral isolated atom has a ground state configuration of 1s2 2s2 2p6 3s2 3p3. Identify the element. a. vanadium (V) b. cobalt (Co) c. argon (Ar) d. The question cannot be answered unless the atomic weight is known e. phosphorus (P) 16.) What is the electronic configuration of tellurium (Te)? 17.) What is the ground state electronic configuration of selenium (Se)? 18.) What is the electronic configuration for Hf? 19.) What is the lowest energy electron configuration of Cr?

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