Homework Answers
| Element | Atomic number | electronic configuration |
| H | 1 |  |
| He | 2 |  |
| Na | 11 | ![[Ne]3s^1](http://img.homeworklib.com/questions/b6dc9260-cd49-11ea-aebb-77c18f529721.png?x-oss-process=image/resize,w_560) |
| Li | 3 |  |
| Ar | 18 | ![[Ne]3s^23p^6](http://img.homeworklib.com/questions/b7737190-cd49-11ea-88c6-095ceb80c880.png?x-oss-process=image/resize,w_560) |
Out of all of these we can see that H and He has one Electron shell.
Ans: H and He
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Which two elements have only one electron shell (n=1) when in their lowest energy state? H...
1.) Among elements 1–18, which element or elements have the smallest effective nuclear charge if we...
1.) Among elements 1–18, which element or elements have the smallest effective nuclear charge if we use the equation Zeff=Z?S to calculate Zeff? H, Li, Na, He, Be, Mg, B, Al, C, Si, N, P, O, S, F, Cl, Ne, Ar 2.) Which element or elements have the largest effective nuclear charge? H, Li, Na, He, Be, Mg, B, Al, C, Si, N, P, O, S, F, Cl, Ne, Ar
a. How much energy does an electron in the n=1 (lowest-energy) state of Hydrogen have? Repeat...
a. How much energy does an electron in the n=1 (lowest-energy) state of Hydrogen have? Repeat for n=2 and n=3. b. How much energy is emitted if an electron in the n=3 state transitions to the n=2 state? c. We used diffraction gratings in class that had 500 lines/mm (white cardboard surrounding grating) and 1000 lines/mm (rainbow cardboard surrounding grating). For the 1000 lines/mm grating, what are the angles of emitted light (relative to the central maximum) when an n=3...
which electron listed below would have the lowest energy? expalin your answer • a 1s electron...
which electron listed below would have the lowest energy? expalin your answer • a 1s electron in H • a 2s electron in Li • a 1s electron in Li
please only answers for questions 1-23. No work needed 1) Give the ground state electron configuration...
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...
1. What are the four quantum numbers for the highest energy electron in Rh (Z=45)? n=...
1. What are the four quantum numbers for the highest energy electron in Rh (Z=45)? n= l= ml= ms= 2. Which of the following elements has the highest energy ground state electron? A. K B. Cs C. Li D. Na
An atom of which of the following elements has the highest electron affinity? Select one: a....
An atom of which of the following elements has the highest electron affinity? Select one: a. Br b. Cl c. Rb d. As e. Se An atom of which of the following elements is not diamagnetic in the ground state? Select one: a. Rn b. Ca c. Pt d. Cd e. All are diamagnetic. The general electron configuration for the outermost electrons of the halogens is Select one: a. ns2np4 b. ns2np5 c. ns2np6 d. ns2np2 e. ns2np3 What...
Which of the following regions of the electromagnetic spectrum has the highest frequency? Select one: A....
Which of the following regions of the electromagnetic spectrum has the highest frequency? Select one: A. Visible light B. Microwaves C. Infrared radiation D. Ultraviolet radiation onization energy is the energy required to add an electron to an atom in the gaseous state. Select one: True False In the Bohr model of the atom, the greatest energy would be emitted if an electron relaxed from the n = 5 orbit to which orbit? Select one: A. n = 2 B....
The trend in second ionization energy for the elements from lithium to fluorine is not a...
The trend in second ionization energy for the elements from lithium to fluorine is not a smooth one. Predict which of these elements has the highest second ionization energy and which has the lowest and explain your choices. (fill in the blank) Based on the electron configuration of the 1+ ions ___ should have the ____second ionization energy since the removal of the second electron involves removing a core electron. The _____ second ionization energy should have ____ since removing...
4. An electron is in a one-dimensional box in the n-1 state. Its energy is equal...
4. An electron is in a one-dimensional box in the n-1 state. Its energy is equal to that of a 600 nm photon. a. What is the energy of the photon? b. What is the length of the box if the electron has the same energy of the photon? c. What is the lowest energy possible for a proton in this box?
10. Based on Periodic Table positions, only this set has two elements that would have similar...
10. Based on Periodic Table positions, only this set has two elements that would have similar chemical properties: A. 11 Na, 12Mg. sXe, ssCs B. 13A, 14S, SP. As C. 13A, 18K, Ge, Sn. D. SF, Zr, son, sal 11. The IUPAC name of Ba(CIO) is A. Barium chloride B. Barium chlorite C. Barium perchlorate D. Barium chlorate 12. The correct order of increasing effective nuclear charge is AK <Mg <P <NO B. Mg <K<P <NO C.O <N<P < Mg...
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...
4. An electron is in a one-dimensional box in the n-1 state. Its energy is equal to that of a 600 nm photon. a. What is the energy of the photon? b. What is the length of the box if the electron has the same energy of the photon? c. What is the lowest energy possible for a proton in this box?
10. Based on Periodic Table positions, only this set has two elements that would have similar chemical properties: A. 11 Na, 12Mg. sXe, ssCs B. 13A, 14S, SP. As C. 13A, 18K, Ge, Sn. D. SF, Zr, son, sal 11. The IUPAC name of Ba(CIO) is A. Barium chloride B. Barium chlorite C. Barium perchlorate D. Barium chlorate 12. The correct order of increasing effective nuclear charge is AK <Mg <P <NO B. Mg <K<P <NO C.O <N<P < Mg...
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