Consider the period-4 D-block elements - atomic numbers 21-30. Which of those elements would be paramagnetic,...
Consider the period-4 D-block elements - atomic numbers 21-30. Which of those elements would be paramagnetic, and which would be diamagnetic? (It may help to draw the orbital diagrams.)
Homework Answers
If element contain unpaired electrons then it is paramagnetic and if all electrons are paired then it is diamagnetic.
Electronic configuration are :
Thus, Sc, Ti, V, Cr, Mn, Fe, Co, Ni, Cu are paramagnetic and Zn is diamagnetic.
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Consider the period-4 D-block elements - atomic numbers 21-30.
Which of those elements would be paramagnetic,...
[6] (a) Write an orbital diagram for the ground state of Magnesium (Mg) and Phosphorous (P). (Marks = 1) [6] (b) Which of the following elements would be expected to be paramagnetic or diamagnetic and...
[6] (a) Write an orbital
diagram for the ground state of Magnesium (Mg) and Phosphorous (P).
(Marks = 1) [6] (b) Which of the following elements would be
expected to be paramagnetic or diamagnetic and why? (Marks = 1)
Magnesium (Mg) and Phosphorous (P)
[6] (a) Write an orbital diagram for the ground state of Magnesium (Mg) and Phosphorous (P) Marks-I) [6] (b) Which of the following elements would be expected to be paramagnetic or diamagnetic and why? (Marks 1)...
20. An atom of which of the following elements has the smallest ionization energy? A. CI...
20. An atom of which of the following elements has the smallest ionization energy? A. CI C. Si B. P DS 21. An atom of which of the following elements has the largest second ionization energy? A. Cs С Ро B. Pb D. Ba Q89. 22. Which of the following forms the most stable anion in the gas phase? A. CI (electron affinity -349 kJ/mol) B. S (electron affinity = -200 kJ/mol) CO (electron affinity = -141 kJ/mol) D. C(electron...
4. Consider valence orbitals of oxygen and those of a transition metal M from Period 4....
4. Consider valence orbitals of oxygen and those of a transition metal M from Period 4. (a) Complete the reference system and name the d orbital of M and the p orbital of O overlapping in the o-bond. M= O (b) Sketch the orbitals you named in 4(a), overlapped in the o-bond. Also, sketch the complete reference system. (c) What is the total number of nodal surfaces in the molecular orbital of your sketch?
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...
Orbitals and Quantum Numbers Each atomic orbital is specified by a unique set of n, l...
Orbitals and Quantum Numbers Each atomic orbital is specified by a unique set of n, l and ml quantum numbers: 1a. What quantum number/s do the two spherical orbitals have in common? What quantum number/s would be different? Are these orbitals s, p or d? 1b. Write down a possible set (n, l, ml) of quantum numbers for each spherical orbital. 1c. Consider the dumb-bell shaped orbitals. What quantum number/s do these three orbitals have in common? What quantum number/s...
5. Consider valence orbitals of oxygen and those of a transition metal M from Period 4. (a) Complete the reference syst...
5. Consider valence orbitals of oxygen and those of a transition metal M from Period 4. (a) Complete the reference system and name the d orbital of M and the orbital of 0 overlapped in the T-bond. M= O (b) Sketch the orbitals you named in 5(a), overlapped in the T-bond. Also, sketch the complete reference system. (c) What is the total number of nodal surfaces in the molecular orbital of your sketch?
4. (12pts) Consider the acetylide ion, C, found in ionic solids like CaC. 1) (4pts) Draw...
4. (12pts) Consider the acetylide ion, C, found in ionic solids like CaC. 1) (4pts) Draw an energy-level diagram for the valence molecular orbitals of C. (The orbitals have the same energy order as those of the neutral C molecule). Fill in the orbital diagram with the appropriate number of electrons. 2) (1pts) The Cyion is (circle one): paramagnetic or diamagnetic 3) (1pts) The bond order of C;- is: 4) (3pts) Draw the best possible Lewis structure for C2- and...
Question #4 & #5? 3) Using Early and Late Molecular Orbitals, draw the two M.O. diagrams...
Question #4 & #5?
3) Using Early and Late Molecular Orbitals, draw the two M.O. diagrams for NO , determine which is most stable; calculate and state bond order of each, state diamagnetic or paramagnetioc d if paramagnetic and by how many electrons. an 4) If four hydrogens, each with its 1s orbital, and two carbons, each with its one 2s and three 2p orbitals, form a molecule, then how many molecular orbitals will there be? How many bonding orbitals,...
4. On the basis of molecular orbitals and molecular orbital diagrams, predict which molecule in each...
4. On the basis of molecular orbitals and molecular orbital diagrams, predict which molecule in each series will have the longest bond. Be sure to provide a brief explanation a. B2, B2 b. 02*, 0,- c. HHe", Hz 5. Consider the hydroxide ion, OH and do the following: a. Prepare a molecular orbital diagram and fill with electrons given the following atomic orbital potential energies: O(2s) = -32.3 eV, O(2p) = -15.8 eV, H(s) -13.6 eV. Be sure to label...
1) The line spectrum of hydrogen includes lines at 447, 502, 587, and 668 nm. Which...
1) The line spectrum of hydrogen includes lines at 447, 502, 587, and 668 nm. Which of these wavelengths would be associated with the greatest amount of energy? A) 447 B) 502 C) 587 D) 668 E) cannot be determined 2) What is the total number of orbitals in the shell designated by n- 42 A) 7 B) 16 C) 4 D) 3 E) none of these 3) How many electrons are there in a 3p orbital? A) 2 B)...
[6] (a) Write an orbital
diagram for the ground state of Magnesium (Mg) and Phosphorous (P).
(Marks = 1) [6] (b) Which of the following elements would be
expected to be paramagnetic or diamagnetic and why? (Marks = 1)
Magnesium (Mg) and Phosphorous (P)
[6] (a) Write an orbital diagram for the ground state of Magnesium (Mg) and Phosphorous (P) Marks-I) [6] (b) Which of the following elements would be expected to be paramagnetic or diamagnetic and why? (Marks 1)...
20. An atom of which of the following elements has the smallest ionization energy? A. CI C. Si B. P DS 21. An atom of which of the following elements has the largest second ionization energy? A. Cs С Ро B. Pb D. Ba Q89. 22. Which of the following forms the most stable anion in the gas phase? A. CI (electron affinity -349 kJ/mol) B. S (electron affinity = -200 kJ/mol) CO (electron affinity = -141 kJ/mol) D. C(electron...
4. Consider valence orbitals of oxygen and those of a transition metal M from Period 4. (a) Complete the reference system and name the d orbital of M and the p orbital of O overlapping in the o-bond. M= O (b) Sketch the orbitals you named in 4(a), overlapped in the o-bond. Also, sketch the complete reference system. (c) What is the total number of nodal surfaces in the molecular orbital of your sketch?
5. Consider valence orbitals of oxygen and those of a transition metal M from Period 4. (a) Complete the reference system and name the d orbital of M and the orbital of 0 overlapped in the T-bond. M= O (b) Sketch the orbitals you named in 5(a), overlapped in the T-bond. Also, sketch the complete reference system. (c) What is the total number of nodal surfaces in the molecular orbital of your sketch?
4. (12pts) Consider the acetylide ion, C, found in ionic solids like CaC. 1) (4pts) Draw an energy-level diagram for the valence molecular orbitals of C. (The orbitals have the same energy order as those of the neutral C molecule). Fill in the orbital diagram with the appropriate number of electrons. 2) (1pts) The Cyion is (circle one): paramagnetic or diamagnetic 3) (1pts) The bond order of C;- is: 4) (3pts) Draw the best possible Lewis structure for C2- and...
Question #4 & #5?
3) Using Early and Late Molecular Orbitals, draw the two M.O. diagrams for NO , determine which is most stable; calculate and state bond order of each, state diamagnetic or paramagnetioc d if paramagnetic and by how many electrons. an 4) If four hydrogens, each with its 1s orbital, and two carbons, each with its one 2s and three 2p orbitals, form a molecule, then how many molecular orbitals will there be? How many bonding orbitals,...
4. On the basis of molecular orbitals and molecular orbital diagrams, predict which molecule in each series will have the longest bond. Be sure to provide a brief explanation a. B2, B2 b. 02*, 0,- c. HHe", Hz 5. Consider the hydroxide ion, OH and do the following: a. Prepare a molecular orbital diagram and fill with electrons given the following atomic orbital potential energies: O(2s) = -32.3 eV, O(2p) = -15.8 eV, H(s) -13.6 eV. Be sure to label...
1) The line spectrum of hydrogen includes lines at 447, 502, 587, and 668 nm. Which of these wavelengths would be associated with the greatest amount of energy? A) 447 B) 502 C) 587 D) 668 E) cannot be determined 2) What is the total number of orbitals in the shell designated by n- 42 A) 7 B) 16 C) 4 D) 3 E) none of these 3) How many electrons are there in a 3p orbital? A) 2 B)...
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