Homework Answers
According to Aufbau principle,in the ground state of an atom or ion,electrons fill in atomic orbitals of lowest available energy levels before occupying higher level.
The energy of atomic orbitals governs by three rules..
1. n-rule: Higher the value of n (principle quantum number), higher is the energy.
2. l-rule: Higher the value of l(angular momentum quantum number), higher is the energy.
3. (n+l)-rule: Higher the value of (n+l),higher is the energy.
In case of 2p and 3s orbital according to rule-1,2p orbital has lower energy than 3s orbital, as n value of 2p orbital (i.e,2) is lesser than the n value of 3s orbital (i.e.,3).Thus for carbon two electrons enter in 2p orbital instead of 3s orbital.
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Why
do the extra 2 electrons go on a p orbital, and not a preceding 3s?...
write condensed electron configurations for the following atoms and indicate the number of valence electrons 2. Wri...
write condensed electron configurations for the following
atoms and indicate the number of valence electrons
2. Write condensed electron configurations for the following atoms and indicate the numbe valence electrons 3. What is wrong with the following electron configurations for atoms in their ground states? (rewrite each one correctly) 1s²2s²3s [Ne]2s²2p3
how many electrons are in antibonding molecular orbitals based on the molecular orbital diagram for o2...
how many electrons are in antibonding molecular
orbitals based on the molecular orbital diagram for o2 given that
each o electron configuration is (2s22p4)? do not include electrons
from the 1s shell in your count.
ewton Alta SP20-CHEM 111 - GENERAL CHEMISTRY I + Homework 5.2 Understand molecular orbital energy diagrams Question How many electrons are in antibonding molecular orbitals based on the molecular orbital diagram for O, given that each o electron configuration is (2s 2p')? Do not include...
6. What is the orbital or electronic geometry of a molecule with pairs and 2 bonding...
6. What is the orbital or electronic geometry of a molecule with pairs and 2 bonding electron pairs? nonbonding electron 7. What is the molecular geometry of a molecule with 1 nonbonding electron pair and 2 bonding electron pairs? 8. Why are the valence electrons of an atom the only electrons likely to be involved in bonding to other atoms? 9. Why do representative elements tend to form bonds giving them a total of 8 valence electrons? 10. How is...
20.) Using orbital diagrams, determine the number of unpaired electrons in each of the following atoms....
20.) Using orbital diagrams, determine the number of unpaired electrons in each of the following atoms. Start with the noble-gas core designation in the first box and then enter electron arrows. Enter your answer using UP to indicate an upwards pointing arrow, DOWN to indicate a downwards pointing arrow, UP/DOWN to indicate two arrows(electrons) in the same orbital, and BLANK to indicate no arrows. Designate unpaired electrons as UP arrows and keep all unpaired electrons and empty orbitals in the...
Part A Why do atomic radii decrease from left to right across a period of the...
Part A Why do atomic radii decrease from left to right across a period of the periodic tablo? O Atomic radii decrease from left to right across a period because the total number of electrons on the electron shell decreases. O Atomic radii decrease from left to right across a period because the effective nuclear charge increases. O Atomic radii decrease from left to right across a period because the effective nuclear charge decreases O Atomic radii decrease from left...
I need all please 1. How many electrons can occupy the 4d subshell? 2. What is...
I need all please
1. How many electrons can occupy the 4d subshell? 2. What is the electron configuration of AI? 3. The electron configuration for sulfur 4. In terms of atomic structure, what is the common characteristic of elements in the same group? 5. Name an element that has three valence electrons. 6. An ion is Which of the following electron configurations is most stable? A. Is 2s 2p2 B. Is 2s 2p C. Is. 2s 2p+ D.IS, 2s...
3) Rank the following orbitals in order of increasing energy: 3s, 2s, 2p, 4s, 3p, ls,...
3) Rank the following orbitals in order of increasing energy: 3s, 2s, 2p, 4s, 3p, ls, and 3d. 4) How many orbitals in an atom can have the following quantum number or designation? a. 3p_ b. 7s c. 4p. d. 5d . e. 5f f. n=5 5) Answer the following questions by filling in the space: a) The quantum number n describes the of an atomic orbital. b) The shape of an atomic orbital is given by the quantum number...
(5 pts] Saraw orbital diagrams for atoms with the following electron configurations:15 2s 2p 3s 3p...
(5 pts] Saraw orbital diagrams for atoms with the following electron configurations:15 2s 2p 3s 3p 45-30 33. Write the equations representing the following processes. In each case, be sure to indicate the physical state of the ions. [2 x 4 pts) The electron affinity of S (1) The fourth ionization energy of titanium (TI) 34 For each of the following pairs, indicate which one of the two species is larger: (3 x 1 pt) (a) N or F- (b)...
Chemistry CHE 140, 170, 180 о Goal: With reference only to the periodic table, to write...
Chemistry CHE 140, 170, 180 о Goal: With reference only to the periodic table, to write the electron configuration of the ground state (lowest energy), gaseous, atoms. Tools: (1) A list of the electronic sublevels within the atom in order of their increasing energy. (Write the list, 1s 2s 2p <6s, in the boxes below as indicated, by inspection of the "Aufbau" diagram or of the periodic table, where the order is explicit) (ii) Fill in the box below each...
8. Why does carbon contain only 4 valence electrons when it has 6 total electrons? 9.True...
8. Why does carbon contain only 4 valence electrons when it has
6 total electrons?
9.True or False. Oxygen and sulfur have the same number of
valence electrons.
10. True or False. Beryllium and magnesium have the same number
of valence electrons.
11. True or False. Sodium and magnesium have the same number of
valence electrons.
12. What is the relationship between the number of valence
electrons and the column on the periodic table?
13. How is the number of...
write condensed electron configurations for the following
atoms and indicate the number of valence electrons
2. Write condensed electron configurations for the following atoms and indicate the numbe valence electrons 3. What is wrong with the following electron configurations for atoms in their ground states? (rewrite each one correctly) 1s²2s²3s [Ne]2s²2p3
how many electrons are in antibonding molecular
orbitals based on the molecular orbital diagram for o2 given that
each o electron configuration is (2s22p4)? do not include electrons
from the 1s shell in your count.
ewton Alta SP20-CHEM 111 - GENERAL CHEMISTRY I + Homework 5.2 Understand molecular orbital energy diagrams Question How many electrons are in antibonding molecular orbitals based on the molecular orbital diagram for O, given that each o electron configuration is (2s 2p')? Do not include...
6. What is the orbital or electronic geometry of a molecule with pairs and 2 bonding electron pairs? nonbonding electron 7. What is the molecular geometry of a molecule with 1 nonbonding electron pair and 2 bonding electron pairs? 8. Why are the valence electrons of an atom the only electrons likely to be involved in bonding to other atoms? 9. Why do representative elements tend to form bonds giving them a total of 8 valence electrons? 10. How is...
Part A Why do atomic radii decrease from left to right across a period of the periodic tablo? O Atomic radii decrease from left to right across a period because the total number of electrons on the electron shell decreases. O Atomic radii decrease from left to right across a period because the effective nuclear charge increases. O Atomic radii decrease from left to right across a period because the effective nuclear charge decreases O Atomic radii decrease from left...
I need all please
1. How many electrons can occupy the 4d subshell? 2. What is the electron configuration of AI? 3. The electron configuration for sulfur 4. In terms of atomic structure, what is the common characteristic of elements in the same group? 5. Name an element that has three valence electrons. 6. An ion is Which of the following electron configurations is most stable? A. Is 2s 2p2 B. Is 2s 2p C. Is. 2s 2p+ D.IS, 2s...
3) Rank the following orbitals in order of increasing energy: 3s, 2s, 2p, 4s, 3p, ls, and 3d. 4) How many orbitals in an atom can have the following quantum number or designation? a. 3p_ b. 7s c. 4p. d. 5d . e. 5f f. n=5 5) Answer the following questions by filling in the space: a) The quantum number n describes the of an atomic orbital. b) The shape of an atomic orbital is given by the quantum number...
(5 pts] Saraw orbital diagrams for atoms with the following electron configurations:15 2s 2p 3s 3p 45-30 33. Write the equations representing the following processes. In each case, be sure to indicate the physical state of the ions. [2 x 4 pts) The electron affinity of S (1) The fourth ionization energy of titanium (TI) 34 For each of the following pairs, indicate which one of the two species is larger: (3 x 1 pt) (a) N or F- (b)...
Chemistry CHE 140, 170, 180 о Goal: With reference only to the periodic table, to write the electron configuration of the ground state (lowest energy), gaseous, atoms. Tools: (1) A list of the electronic sublevels within the atom in order of their increasing energy. (Write the list, 1s 2s 2p <6s, in the boxes below as indicated, by inspection of the "Aufbau" diagram or of the periodic table, where the order is explicit) (ii) Fill in the box below each...
8. Why does carbon contain only 4 valence electrons when it has
6 total electrons?
9.True or False. Oxygen and sulfur have the same number of
valence electrons.
10. True or False. Beryllium and magnesium have the same number
of valence electrons.
11. True or False. Sodium and magnesium have the same number of
valence electrons.
12. What is the relationship between the number of valence
electrons and the column on the periodic table?
13. How is the number of...
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