Homework Answers
14. The electron pair repulsion is minimum when the lone pair is at the largest distance to each other. So it will be minimum in (C) option.
15. (B) H-Li. The electron density will be maximum when H is attached to a electropositive element which will donate its electron to H so Li is the only electropositive element among these.
16. (B) N2 because it has only 14 alectrons in valance.
17. (C) CHCl3
18. (A) 8 because it has 6 valance electrons and 2 bonding
19 (C)
20. (B)
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14. Select which of the following repulsive interactions between electron pairs would be sma c. All...
8. Which of the following atoms has the largest magnitude electron affinity? (a) Sodium (Na) (b)...
8. Which of the following atoms has the largest magnitude electron affinity? (a) Sodium (Na) (b) Rubidium (Rb) (c) Caesium (Cs) (d) Potassium (K) ( e) Lithium (Li)
please answer all of the following questions. no work needs to be shown. 14) Choose the...
please answer all of the following questions. no work needs to be
shown.
14) Choose the valence orbital diagram that represents the ground state of 2 7600 wells and -10°C A) 3d 2p 15) How many valence electrons do the halogens possess? A) 2 B) 1 E) 6 D) 5 C) 7 16) Halogens can react with each other to form A) metal halides. B) covalent bonds. C) salts. D) hydrogen halides. E) ionic bonds. 17) No two electrons can...
3. Which is the correct electron configuration for a nitrogen atom? A) 1s22s22p B) 1s22s22pl C)...
3. Which is the correct electron configuration for a nitrogen atom? A) 1s22s22p B) 1s22s22pl C) 1s22s22p4 D) 1s22s22p3 E) [He]2s22p5 4. Which is the correct electron configuration for an oxide ion? A) 1s22s22p3 B) 1s22s22pl C) 1s22s22p6 D) 1s22s23s2 E) 1s22s22p2 5. Every orbital in a subshell is singly occupied with one electron before an doubly occupied, and all electrons in singly occupied orbitals have the sam describes A) Planck's constant B) Heisenberg Uncertainty Principle C) Pauli Exclusion Principle...
17 Which of the following is the electron B. 5.83 9L C. 224 gL D. 27...
17 Which of the following is the electron B. 5.83 9L C. 224 gL D. 27 2 9 E. 760 91 configuration for the aluminum? A 18 Which of these gases will have the specified temperature and pressure? B) CCIF C) CO E) CF. 19. Which of the atoms listed below has the largest radius? B) I C) P D) Sb E) Se 20 Arrange the following ions in order of increasing ionic radius: K, P,s cr. i2 21. Which...
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...
C) 5 D) 14 E) none of the above Which element is represented by the electron...
C) 5 D) 14 E) none of the above Which element is represented by the electron configuration 18282p? A) B) 0 C) Be D) He E) none of the above 46. What is the electron configuration for Ga? A) 1822p%3s 3p%4s 4d104p! B) 1s2 s2p 3s 3p 3d104824p 1s 2s 2p 3s 3p64523d104p! D) 152s 2p 3s 3p%3d104s24p! E) none of the above 47. What is the element in which at least one electron is in the d-orbital? A) Ar...
17. The distance between an electron and a hole across a band gap following electronic excitation...
17. The distance between an electron and a hole across a band gap following electronic excitation is called A. Bohr exciton radius B. Bohr radius C. quantum D. conduction band 18. When a photon strikes an atom, the energy is absorbed by A. a proton which moves to an excited state. B. a neutron which causes the nucleus to split. C. an electron which moves from the ground to an excited state. D. nothing. A photon is never absorbed by...
14 Which of the following is true if a molecule possesses lone pairs on the central...
14 Which of the following is true if a molecule possesses lone pairs on the central atom but is not hydrogen bonded? (A) the molecule will have a hydrogen bonded directly to an N, O, or F (B) the molecule will be nonpolar (C) the molecule will be an ionic crystal lattice structure where there are strong clectrostatic (D) the molecule will be polar 15 A substance with strong intermolecular forces will have (A) low boiling point (B) high reactivity...
25-30 25. Which of the atoms listed below is the most electronegative? A) Li B) Cs...
25-30
25. Which of the atoms listed below is the most electronegative? A) Li B) Cs C)P D) As E) Ge 26. The number of pi bonds in the molecule below is ?? ?? A) 2. B) 4. C) 6. D) 10. E) 15 27 Which of the following molecules have the same geometries? 28. Which of the following is a basic oxide? 29. Which of the following elements behaves chemically similarly to oxygen? 30 Lanthanide (or rare earth elements)...
5. The F e, Na and Mg2 hve the same number of le Electron . Which...
5. The F e, Na and Mg2 hve the same number of le Electron . Which of the following Matements about the top of a given element is correct The atom Nave the same number of protons but Tering number of rond b. The storms have the same number of neutron but rering number of electron C. The have the n umber of electrons but differing number of protons d. The Mons have the same number of neutrons but differing...
please answer all of the following questions. no work needs to be
shown.
14) Choose the valence orbital diagram that represents the ground state of 2 7600 wells and -10°C A) 3d 2p 15) How many valence electrons do the halogens possess? A) 2 B) 1 E) 6 D) 5 C) 7 16) Halogens can react with each other to form A) metal halides. B) covalent bonds. C) salts. D) hydrogen halides. E) ionic bonds. 17) No two electrons can...
3. Which is the correct electron configuration for a nitrogen atom? A) 1s22s22p B) 1s22s22pl C) 1s22s22p4 D) 1s22s22p3 E) [He]2s22p5 4. Which is the correct electron configuration for an oxide ion? A) 1s22s22p3 B) 1s22s22pl C) 1s22s22p6 D) 1s22s23s2 E) 1s22s22p2 5. Every orbital in a subshell is singly occupied with one electron before an doubly occupied, and all electrons in singly occupied orbitals have the sam describes A) Planck's constant B) Heisenberg Uncertainty Principle C) Pauli Exclusion Principle...
17 Which of the following is the electron B. 5.83 9L C. 224 gL D. 27 2 9 E. 760 91 configuration for the aluminum? A 18 Which of these gases will have the specified temperature and pressure? B) CCIF C) CO E) CF. 19. Which of the atoms listed below has the largest radius? B) I C) P D) Sb E) Se 20 Arrange the following ions in order of increasing ionic radius: K, P,s cr. i2 21. Which...
C) 5 D) 14 E) none of the above Which element is represented by the electron configuration 18282p? A) B) 0 C) Be D) He E) none of the above 46. What is the electron configuration for Ga? A) 1822p%3s 3p%4s 4d104p! B) 1s2 s2p 3s 3p 3d104824p 1s 2s 2p 3s 3p64523d104p! D) 152s 2p 3s 3p%3d104s24p! E) none of the above 47. What is the element in which at least one electron is in the d-orbital? A) Ar...
17. The distance between an electron and a hole across a band gap following electronic excitation is called A. Bohr exciton radius B. Bohr radius C. quantum D. conduction band 18. When a photon strikes an atom, the energy is absorbed by A. a proton which moves to an excited state. B. a neutron which causes the nucleus to split. C. an electron which moves from the ground to an excited state. D. nothing. A photon is never absorbed by...
14 Which of the following is true if a molecule possesses lone pairs on the central atom but is not hydrogen bonded? (A) the molecule will have a hydrogen bonded directly to an N, O, or F (B) the molecule will be nonpolar (C) the molecule will be an ionic crystal lattice structure where there are strong clectrostatic (D) the molecule will be polar 15 A substance with strong intermolecular forces will have (A) low boiling point (B) high reactivity...
25-30
25. Which of the atoms listed below is the most electronegative? A) Li B) Cs C)P D) As E) Ge 26. The number of pi bonds in the molecule below is ?? ?? A) 2. B) 4. C) 6. D) 10. E) 15 27 Which of the following molecules have the same geometries? 28. Which of the following is a basic oxide? 29. Which of the following elements behaves chemically similarly to oxygen? 30 Lanthanide (or rare earth elements)...
5. The F e, Na and Mg2 hve the same number of le Electron . Which of the following Matements about the top of a given element is correct The atom Nave the same number of protons but Tering number of rond b. The storms have the same number of neutron but rering number of electron C. The have the n umber of electrons but differing number of protons d. The Mons have the same number of neutrons but differing...
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