1. Using basic electrostatic arguments, explain why an electron “in” the 2s orbital of neon is...
1. Using basic electrostatic arguments, explain why an electron “in” the 2s orbital of neon is of higher potential energy than it would be “in” the 1s orbital.
2. Explain why is it that periods 2 and 3 of the periodic table
have 8 elements apiece while periods 4 and 5 have 18 elements and
why aren't there 18 elements in period 3?
3. How many orbitals exists when n=5, l=3? What are these orbitals
called? Are these orbitals degenerate? What are the maximum number
of electrons that can have n=5, l=3?
Homework Answers
1. The nucleus of any atom contains positive charge while electrons that are orbiting around it are negatively charged. An electron in 1s orbital is closer to the nucleus than an electron in 2s orbital. Hence, the electron in 2s orbital tends to attain the closest possible distance from the nucleus. This increases its potential energy. The electron in 1 s orbital is already at the closest possible distance from the nucleus.
Add Answer to:
1. Using basic electrostatic arguments, explain why an electron
“in” the 2s orbital of neon is...
2. Explain why is it that periods 2 and 3 of the periodic table have 8...
2. Explain why is it that periods 2 and 3 of the periodic table have 8 elements apiece while periods 4 and 5 have 18 elements and why aren't there 18 elements in period 3?
Orbital Notation Date Per PART A-ORBITAL DIAGRAMS & LONGHAND ELECTRON CONFIGURATION Use the patterns within the...
Orbital Notation Date Per PART A-ORBITAL DIAGRAMS & LONGHAND ELECTRON CONFIGURATION Use the patterns within the periodic table to draw orbital diagrams and write longhand electron configurations for the following atoms Symbol | # o | Longhand Electron Configuration Mg 4. Ge 5 Kr CHEM Electron Configuration-Ch.4 PART B-SHORTHAND ELECTRON CONFIGURATION Use the patterns within the periodio table to write the shorthand electron configurations for the following elements Symbol Shorthand Electron Configuration 7. Ca loj PART C-RULES OF ELECTRON CONFIGURATIONS...
eleven an energy level? eren 15) Why does it take more energy to remove an electron...
eleven an energy level? eren 15) Why does it take more energy to remove an electron from Althan from Al? 16) Distinguish between an atom in its ground state and an excited atom. 17) Which of the following notations shows the electron configuration of a neutral atom in an excited state? Name the element, and explain how you know if it is excited or not: 1s 2s 2p' (b) 1s 2s 2p 3s! Oxygen is in excited States oxygen crtom...
An orbital-filling diagram shows the number of electrons m each orbital, which are shown in order...
An orbital-filling diagram shows the number of electrons m each orbital, which are shown in order of energy. The placement of electrons in orbitals follows a certain set of rules. Lower energy subshells fill before higher energy subshells. The order of filling is 1s, 2s, 2p, 3s, 3p, 4s, 3d, 4p, 5s, 4d, 5p, 6s, 4f, 5d, 6p, 7s, 5f, 6d, 7p. The periodic table can be used to help you remember this order. An orbital can hold up to...
Chemistry 1A Name: Quantum Theory & Periodic Trends 1. What element is represented by the electron...
Chemistry 1A Name: Quantum Theory & Periodic Trends 1. What element is represented by the electron configuration 1s 2s 2p 3s 3p? 2. What element is represented by the orbital diagram: 3. Draw the orbital diagrams (as in #2) for the following species, using noble gas abbreviation: 4. Write the electron configuration for the following elements and ions using spdf notation (without noble gas abbreviations): Ge 5. Write the electron configuration for the following elements and ions using noble gas...
1. What do Quanmum numbers indicate and where do they come from? 2. The principal Quantum...
1. What do Quanmum numbers indicate and where do they come from? 2. The principal Quantum number n represents what level of atomic structure and how many electrons are in n=3? 3. What do the orbitals represent? 4. Why is the periodic chart is organized according to Classic Chemical reactivity and orbital structure? 5. Why does Electronegativity increase from left to right and top to bottom? What is the electron configuration of Oxygen and what are the Quantum Numbers for...
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)...
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...
Periodic Table Worksheet #1 A. Write the electron configurations (all 3 ways) for the following elements:...
Periodic Table Worksheet #1 A. Write the electron configurations (all 3 ways) for the following elements: 1. Sulfur ts: 1s 2s 3s 3d boy to bod o bonarum 2. Calcium 15 hongehoo l 2s - - - 35 3d - - - AS 4d 4f Write the standard and noble gas electron configurations for the following elements: 3. Silver 4. Gold Sos 5. Radium
4 pts) Explain in płysical terms why, in many-electron atoms, the 2s orbital is lower in...
4 pts) Explain in płysical terms why, in many-electron atoms, the 2s orbital is lower in energy than the.2p sublevel, and thus get filled first in the Aufbau process 19. 20. (4 pts.) Remember the problem of counting configurations for a box of coins that are either heads-up or tails- up. What is the entropy of an entire mole of spin 1-1/2 particles in units J/K Use Stirling's approximation Inx!xInx-x b) in the all-spins-up configuration? Note: TAS would represent the...
Orbital Notation Date Per PART A-ORBITAL DIAGRAMS & LONGHAND ELECTRON CONFIGURATION Use the patterns within the periodic table to draw orbital diagrams and write longhand electron configurations for the following atoms Symbol | # o | Longhand Electron Configuration Mg 4. Ge 5 Kr CHEM Electron Configuration-Ch.4 PART B-SHORTHAND ELECTRON CONFIGURATION Use the patterns within the periodio table to write the shorthand electron configurations for the following elements Symbol Shorthand Electron Configuration 7. Ca loj PART C-RULES OF ELECTRON CONFIGURATIONS...
eleven an energy level? eren 15) Why does it take more energy to remove an electron from Althan from Al? 16) Distinguish between an atom in its ground state and an excited atom. 17) Which of the following notations shows the electron configuration of a neutral atom in an excited state? Name the element, and explain how you know if it is excited or not: 1s 2s 2p' (b) 1s 2s 2p 3s! Oxygen is in excited States oxygen crtom...
An orbital-filling diagram shows the number of electrons m each orbital, which are shown in order of energy. The placement of electrons in orbitals follows a certain set of rules. Lower energy subshells fill before higher energy subshells. The order of filling is 1s, 2s, 2p, 3s, 3p, 4s, 3d, 4p, 5s, 4d, 5p, 6s, 4f, 5d, 6p, 7s, 5f, 6d, 7p. The periodic table can be used to help you remember this order. An orbital can hold up to...
Chemistry 1A Name: Quantum Theory & Periodic Trends 1. What element is represented by the electron configuration 1s 2s 2p 3s 3p? 2. What element is represented by the orbital diagram: 3. Draw the orbital diagrams (as in #2) for the following species, using noble gas abbreviation: 4. Write the electron configuration for the following elements and ions using spdf notation (without noble gas abbreviations): Ge 5. Write the electron configuration for the following elements and ions using noble gas...
1. What do Quanmum numbers indicate and where do they come from? 2. The principal Quantum number n represents what level of atomic structure and how many electrons are in n=3? 3. What do the orbitals represent? 4. Why is the periodic chart is organized according to Classic Chemical reactivity and orbital structure? 5. Why does Electronegativity increase from left to right and top to bottom? What is the electron configuration of Oxygen and what are the Quantum Numbers for...
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)...
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...
Periodic Table Worksheet #1 A. Write the electron configurations (all 3 ways) for the following elements: 1. Sulfur ts: 1s 2s 3s 3d boy to bod o bonarum 2. Calcium 15 hongehoo l 2s - - - 35 3d - - - AS 4d 4f Write the standard and noble gas electron configurations for the following elements: 3. Silver 4. Gold Sos 5. Radium
4 pts) Explain in płysical terms why, in many-electron atoms, the 2s orbital is lower in energy than the.2p sublevel, and thus get filled first in the Aufbau process 19. 20. (4 pts.) Remember the problem of counting configurations for a box of coins that are either heads-up or tails- up. What is the entropy of an entire mole of spin 1-1/2 particles in units J/K Use Stirling's approximation Inx!xInx-x b) in the all-spins-up configuration? Note: TAS would represent the...
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