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give number of Valence electron of Zr Part A Give the number of valence electrons for...
Review Part A In the ground-state electron configuration of Fest, how many unpaired electrons are present? Express your answer numerically as an Integer. View Available Hint(s) 1s^2 2s^2 2p^6 3s^2 3p-6 4d^O 3 Submit Previous Answers X Incorrect; Try Again; 2 attempts remaining Part A The number of electrons in the ion Zn2+ is Submit Request Answer Provide Feedback Part A Using shorthand notation, the ground-state electron configuration for Co2+ is predicted to be Express your answer in condensed form,...
Part A An element with the same number of valence electrons as the element with the electron configuration 1s 2s 2p 3s 3pºis sulfur. argon. O potassium lodine. oxygen. Submit Request Answer Provide Feedback Next >
Give appropriate names for the following compounds. Part E Interactive 3D display mode Spell out the full name of the compound. phenyl ethanoate Submit Previous Answers Request Answer X Incorrect; Try Again; 5 attempts remainina Part F Interactive 3D display mode CH3 нс- Spell out the full name of the compound. propyl propionate Submit Previous Answers Request Answer X Incorrect; Try Again; 4 attempts Part 1 Interactive 3D display mode Spell out the full name of the compound. diethyl benzene-1,4-dicarboxylate...
State the number of protons and electrons in each of the following: State the number of protons in Zn2+ Express your answer as an integer. VO AQ R o 2 ? Submit Previous Answers Request Answer X Incorrect; Try Again; 2 attempts remaining - Part B State the number of electrons in Zn2+. Express your answer as an integer. V ASO A N O P ? State the number of protons and electrons in each of the following: Part C...
10 of 12 Part A Which wavelength of light (in nanometers) is emitted if an electron moves from the conduction band to the valence band in a sample of the ceramic boron nitride? (Note that the ceramic boron nitride has a band gap of 7.5 eV) Express the wavelength to two decimal places A 248 nm Submit Previous Answers Request Answer X Incorrect: Try Again
Part A What is the lowest possible energy (in electron volts) of an electron in hydrogen if its orbital angular momentum is 2h? Express your answer in electronvolts to three significant figures. En 1.15 eV Submit Previous Answers Request Answer X Incorrect, Try Again; 3 attempts remaining
Review Part A Two pellets, each with a charge of 1.2 microcoulomb (1.2x10 ), are located 4.0 cm (4.0x10 m) apart. C Find the electric force between them. Express your answer to two significant figures and Include the appropriate units. A F Value Units Submit Previous Answers Request Answer X Incorrect; Try Again; One attempt remaining Provide Foodback Review Part A Two pellets, each with a charge of 1.2 microcoulomb (1.2x10 ), are located 4.0 cm (4.0x10 m) apart. C...
Зр Give your answer as a string, for example 1s. Submit Previous Answers Request Answer * Incorrect; Try Again; 3 attempts remaining Part B 4p Give your answer as a string, for example 1s. Submit Previous Answers Request Answer X Incorrect; Try Again; 5 attempts remaining Part C 4f
Part A (acidic) HfO2 (s) → Hf(s) Express your answer as a half-reaction including electrons and phases. AJO O ? Submit Previous Answers Request Answer X Incorrect; Try Again; 2 attempts remaining Part B (basic) Ni(OH)2 (s) → Ni2O3 (s) Express your answer as a half-reaction including electrons and phases. Part C (acidic) NO3 - (aq) + NO2 (g) Express your answer as a half-reaction including electrons and phases. = AED P ? NO2 (aq) + 2H+ (aq) + e...
Part J Give the number of pi electrons in the ring for each of the following structures. Express your answers as integers separated by commas. O A AEO ROO ? 3 ? Submit Previous Answers Request Answer