Homework Answers
23)
The formula to calculate the value of 'l' is (n-1).
l = (n-1), this suggests that the value of 'l' never be equal to the value of 'n', hence option (b) is wrong, in which the values of both n & l are mentioned same.
1,1,0,+1/2 ---- is wrong.
24)
Copper (Cu) has ground state electronic configuration as
[At]4S13d10
25)
Transition elements, have partially filled 'd' orbitals.
26)
Carbon atomic number= 6
Ground state electronic configuration = 1S22S22P2
Excited state electronic configuration = 1S22S12P3 (or) 1S22S22P13S1
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23. Use definitions of n, l.ml, and ms to identify which of the following is not...
27. Calculate the energy U) change associated for an electronic transition in a Bohr hydrogen atom...
27. Calculate the energy U) change associated for an electronic transition in a Bohr hydrogen atom from n-3 ton - Is the energy absorbed or released? -1.94 10 18 absorbed -8.9010; no change 3.90 x 10-19, released - 194 10- 18released -3.90 x 10-19 absorbed Question 28 1 pts 28. Use the definition of Pouli Exclusion Principle to identify which electron configuration below represents a violation of the Pauli Exclusion Principle? 1s 2s 2p 3s1 1s 2s 2p 3s 1522s2p...
Question 9 (1 point) ✓ Saved Which of the following represents the ground state electron configuration...
Question 9 (1 point) ✓ Saved Which of the following represents the ground state electron configuration for a N atom? (Atomic number N = 7) 152 2s22p 3s23p3 O 1s 2s22p3 1s 2s22p 3p 152 2s22p6355 O 15² 255
Thank you! Q18. Which of the following electron configurations corresponds to the ground state of an...
Thank you!
Q18. Which of the following electron configurations corresponds to the ground state of an atom of a transition element? A) 1s22s22p 3s23p 4s%3d B) 1s22s22p%3s 3p43d4 C) 1s22s22p 3s 3p64523 D) 1s22s22p 3s 3p%3d1045-4p) E) 1s22s2p 3s23p%3d"45²4p3 Q20. Particle A moves three times faster than particle B, calculate the mass ratio of particle A to particle B, if both have the same de Broglie wavelength. A) 0.33 B) 3.0 C) 0.66 D) 0.25 E) 0.75 Q21. Which ground-state...
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...
identify which sets of quantrum numbers are valid for an electron. Each set is ordered (n,l,ml,ms)...
identify which sets of quantrum numbers are valid for an
electron. Each set is ordered (n,l,ml,ms)
2,1,0,1/2 Every electron in an atom is described by a unique set of four quantum numbers:n, 2.me, and Ms. The principal quantum number, 72, identifies the shell in which the electron is found. The angular momentum quantum number, 2, indicates the kind of subshell. The magnetic quantum number, my, distinguishes the orbitals within a subshell. The spin quantum number, my, specifies the electron spin....
Part A An electron undergoes a transition from an initial (ni) to a final (nf )...
Part A
An electron undergoes a transition from an initial
(ni) to a final (nf ) energy state. The
energies of the ni and nf energy states are
−2.420×10−19J and −8.720×10−20 J,
respectively. Calculate the wavelength of the light in nanometers
corresponding to this transition.
You can use the following values for your calculations: Planck′s
constant (h) = 6.626×10−34 J⋅s, speed of light (c) =
2.998×108 m/s, and 1 m=109 nm Express your
answer in nanometers to four significant figures....
Which of the following set of quantum numbers (ordered n,l,ml,ms) are possible for an electron in...
Which of the following set of quantum numbers (ordered
n,l,ml,ms) are possible for an electron in an atom?
Quantum Number Rules Learning Goal: To learn the restrictions on each quantum number. Quantum numbers can be thought of as labels for an electron. Every electron in an atom has a unique set of four quantum numbers. The principal quantum number n corresponds to the shell in which the electron is located. Thus n can therefore be any integer. For example, an...
18. How many electrons musta se atomoeoman (083 19. Which element has the following ground state...
18. How many electrons musta se atomoeoman (083 19. Which element has the following ground state weten wir S 0 8 (3)1 (4) To 20. Which one of the following elements forma a state ani? ( P s e 21. Which iwo of the following make an electronen on on Real Poli (0) Chand (2) O and F (3) F and CH (4) Foard Cat 22. Which of the following is the electron configuration for the summ on () (3)...
23. Which of the following sets of quantum numbers is not allowed (invalid)? d. n=2, L...
23. Which of the following sets of quantum numbers is not allowed (invalid)? d. n=2, L = 1, m L = 1, ms =-1/2 24. How many of the following elements have 1 unpaired electron in the ground state? Al CI d. 4 25. Which of the following electron configurations is not possible? a. 1 b. 2 c. 3 a. 1s22s22p5 b. 1s22s22p3 c. 1s22s22p2 d. 1s22s1 e. 1s22s32p 26. Which of the following properties, in general, decrease as we...
a) Which set of four quantum numbers (n, I, ml and ms) is acceptable for an...
a) Which set of four quantum numbers (n, I, ml and ms) is acceptable for an electron in an atom? Answer: (Click to select) b) Which orbital diagram is acceptable for 4d3? Answer: (Click to select) c) Which element has electrons in 5f subshell? Answer: (Click to select) d) Which subshell has the highest electron capacity? Answer: (Click to select) e) There are how many unpaired electrons in 3p subshell of Se? Answer: electrons f) Electrons of Xe are placed...
27. Calculate the energy U) change associated for an electronic transition in a Bohr hydrogen atom from n-3 ton - Is the energy absorbed or released? -1.94 10 18 absorbed -8.9010; no change 3.90 x 10-19, released - 194 10- 18released -3.90 x 10-19 absorbed Question 28 1 pts 28. Use the definition of Pouli Exclusion Principle to identify which electron configuration below represents a violation of the Pauli Exclusion Principle? 1s 2s 2p 3s1 1s 2s 2p 3s 1522s2p...
Question 9 (1 point) ✓ Saved Which of the following represents the ground state electron configuration for a N atom? (Atomic number N = 7) 152 2s22p 3s23p3 O 1s 2s22p3 1s 2s22p 3p 152 2s22p6355 O 15² 255
Thank you!
Q18. Which of the following electron configurations corresponds to the ground state of an atom of a transition element? A) 1s22s22p 3s23p 4s%3d B) 1s22s22p%3s 3p43d4 C) 1s22s22p 3s 3p64523 D) 1s22s22p 3s 3p%3d1045-4p) E) 1s22s2p 3s23p%3d"45²4p3 Q20. Particle A moves three times faster than particle B, calculate the mass ratio of particle A to particle B, if both have the same de Broglie wavelength. A) 0.33 B) 3.0 C) 0.66 D) 0.25 E) 0.75 Q21. Which ground-state...
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...
identify which sets of quantrum numbers are valid for an
electron. Each set is ordered (n,l,ml,ms)
2,1,0,1/2 Every electron in an atom is described by a unique set of four quantum numbers:n, 2.me, and Ms. The principal quantum number, 72, identifies the shell in which the electron is found. The angular momentum quantum number, 2, indicates the kind of subshell. The magnetic quantum number, my, distinguishes the orbitals within a subshell. The spin quantum number, my, specifies the electron spin....
Part A
An electron undergoes a transition from an initial
(ni) to a final (nf ) energy state. The
energies of the ni and nf energy states are
−2.420×10−19J and −8.720×10−20 J,
respectively. Calculate the wavelength of the light in nanometers
corresponding to this transition.
You can use the following values for your calculations: Planck′s
constant (h) = 6.626×10−34 J⋅s, speed of light (c) =
2.998×108 m/s, and 1 m=109 nm Express your
answer in nanometers to four significant figures....
Which of the following set of quantum numbers (ordered
n,l,ml,ms) are possible for an electron in an atom?
Quantum Number Rules Learning Goal: To learn the restrictions on each quantum number. Quantum numbers can be thought of as labels for an electron. Every electron in an atom has a unique set of four quantum numbers. The principal quantum number n corresponds to the shell in which the electron is located. Thus n can therefore be any integer. For example, an...
18. How many electrons musta se atomoeoman (083 19. Which element has the following ground state weten wir S 0 8 (3)1 (4) To 20. Which one of the following elements forma a state ani? ( P s e 21. Which iwo of the following make an electronen on on Real Poli (0) Chand (2) O and F (3) F and CH (4) Foard Cat 22. Which of the following is the electron configuration for the summ on () (3)...
23. Which of the following sets of quantum numbers is not allowed (invalid)? d. n=2, L = 1, m L = 1, ms =-1/2 24. How many of the following elements have 1 unpaired electron in the ground state? Al CI d. 4 25. Which of the following electron configurations is not possible? a. 1 b. 2 c. 3 a. 1s22s22p5 b. 1s22s22p3 c. 1s22s22p2 d. 1s22s1 e. 1s22s32p 26. Which of the following properties, in general, decrease as we...
a) Which set of four quantum numbers (n, I, ml and ms) is acceptable for an electron in an atom? Answer: (Click to select) b) Which orbital diagram is acceptable for 4d3? Answer: (Click to select) c) Which element has electrons in 5f subshell? Answer: (Click to select) d) Which subshell has the highest electron capacity? Answer: (Click to select) e) There are how many unpaired electrons in 3p subshell of Se? Answer: electrons f) Electrons of Xe are placed...
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