For the 1s state only , starting from the Del squared operator in
spherical coordinates please.

For the 1s state only , starting from the Del squared operator in spherical coordinates please....
Write the electron distribution for Indium (In) starting with Kr (i.e., Kr = 1s^2 2s^2 2p^6 3s^2 3p^6 3d^10 4s^2 4p^6). Identify Indium's valence electrons. Is InTe primarily ionically bonded or mainly covalently bonded (Support your answer with a calculation)? At what energy (in keV) would Al, Al_2 O_3, and A1N show an A1 EDS (energy dispersive spectroscopy) peak if Al K_alpha radiation has a wavelength of 8.33947 A ?
answer all please
11 Rank the following types of electromagnetic radiation from shortest wavelength to longest wavelength Visible, ultraviolet, microwave, infrared, x-ray A X-ray visible ultraviolet <infrared <microwave B X-ray ultraviolet visible <microwave <infrared CX-ray ultraviolet < visible <infrared < microwave D. infrared microwave <ultraviolet visible <X-ray E microwave <infrared <ultraviolet < visible <X-ray 12. What is the energy of a photo of yellow light whose wavelength is 589 nm? A 3.38 x 10-19 B 3.38 x 10-10 C. 1.77...
3. Knowing that the magnesium and aluminum atoms possesses 12 and 13 electrons respectively: (a) Write down the electron configuration (nl) of the ground state. Explain your answer. (b) We focus on the electron configuration determined in (a). Considering only the electrons from the outer subshell, add their electronic spins and their orbital angular momenta separately. Label the total spin and the total orbital momentum quantum numbers by s and l, respectively. Write down the possible values spanned by s...
3. Knowing that the magnesium and aluminum atoms possesses 12 and 13 electrons respectively: (a) Write down the electron configuration (nl) of the ground state. Explain your answer. (b) We focus on the electron configuration determined in (a). Considering only the electrons from the outer subshell, add their electronic spins and their orbital angular momenta separately. Label the total spin and the total orbital momentum quantum numbers by s and l, respectively. Write down the possible values spanned by s...
please only answers for questions 1-23. No work needed
1) Give the ground state electron configuration for the ion of Ba. A) [Krj5s24d 105pfes2 B) (KrjS24d105ph26p2 9(KrjS24d105p6 D) Kr525p E) [Kr]5s24d105pés 2) Choose the valence orbital diagram that represents the ground state of Se A) 1 11 1 4s 4p в) 1 11 4s 4p C) 1L 3s Зр D) 11 1L 1 3s Зр E) 1 1 4s 4P 3) How many valence electrons do the alkaline earth metals...
Ruthenium (Ru) is commonly used in the manufacture of platinum alloys. What is the ground-state electron configuration for an atom of ruthenium? 1. Analyze the Problem Known: Unknown: Determine the number of additional electrons a ruthenium atom has compared to the nearest preceding noble gas, and then write out ruthenium's electron configuration. 2. Solve for the Unknown From the periodic table, ruthenium's atomic number is determined to .Thus a ruthenium atom contains electrons. The noble gas be preceding ruthenium is...
HUBY B) b only C) conly 2. Convert the energy value of 175.0 Joules (J) to calories (cal). (I cat. A) 0.1750 cal. B) 0.5230 C) 732.2 cal. D) 29.88 cal. alories (cal). (I cal. = 4.184J D) 29.88 cal. E) 41.83 cal. E) Cl (1) D) CH (8) _3. Of the following. AH is zero for A) Fe (1) B) Al(s) C) 02 (8) D) Cl(s) --4. Which of the following sets of subshells is in the correct order...
What results when a secondary alcohol is oxidized? a. a ketone d. an acid b. an amine e. no reaction c. an aldehyde Which of the following combinations will react spontaneously? A. 12 + Cu2+ B. Pb2+ + Ag C. Zn2+ + Mg D. Sn2+ + Ni2+ The general formula for a cycloalkane can be represented by which of the following? a. C,H, C. CH b. C.H2n+2 d. C.H21-2 In a certain reaction AH =-136 kJ and E, = 96...