Periodic Table And Electron Configuration
Kerala Board · Class 10 · Chemistry
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What are orbitals and how do they differ from Bohr's orbits?
Answer
Orbitals are regions around the nucleus where there is maximum probability of finding electrons, based on quantum mechanical model. Unlike Bohr's definite circular paths (orbits), orbitals represent p…
Define the principal quantum number (n) and list its possible values.
Answer
Principal quantum number (n) represents the shells or principal energy levels of electrons. Possible values: n = 1, 2, 3, 4... where n = 1 is K shell, n = 2 is L shell, n = 3 is M shell, and n = 4 is …
What is azimuthal quantum number (l) and how does it relate to subshells?
Answer
Azimuthal quantum number (l) defines the three-dimensional shape of orbitals and represents subshells. Values range from 0 to (n-1). l = 0 (s subshell), l = 1 (p subshell), l = 2 (d subshell), l = 3 (…
How many orbitals are present in s, p, d, and f subshells?
Answer
s subshell: 1 orbital (spherical shape) p subshell: 3 orbitals (dumbbell shape) d subshell: 5 orbitals (complex shapes) f subshell: 7 orbitals (more complex shapes) General formula: For l value, numbe…
What is the maximum number of electrons that can be accommodated in each shell?
Answer
Formula: Maximum electrons in shell = 2n² K shell (n=1): 2 electrons L shell (n=2): 8 electrons M shell (n=3): 18 electrons N shell (n=4): 32 electrons Each orbital can hold maximum 2 electrons.
What is the maximum electron capacity of s, p, d, and f subshells?
Answer
s subshell: 2 electrons (1 orbital × 2) p subshell: 6 electrons (3 orbitals × 2) d subshell: 10 electrons (5 orbitals × 2) f subshell: 14 electrons (7 orbitals × 2) General formula: 2(2l + 1) electron…
How do you determine the order of energy of subshells using (n+l) rule?
Answer
Energy of subshells increases with increasing (n+l) values. If (n+l) values are equal, subshell with higher n value has more energy. Example: 2p (n+l = 3) < 3s (n+l = 3, but higher n) < 3p (n+l = 4) O…
Write the subshell electron configuration of Carbon (₆C) and Neon (₁₀Ne).
Answer
Carbon (₆C): 1s² 2s² 2p² Neon (₁₀Ne): 1s² 2s² 2p⁶ Electrons fill in order of increasing energy: 1s fills first (2 electrons), then 2s (2 electrons), then 2p starts filling.
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- Kerala Board of Public Examinations — keralapareekshabhavan.in
- National Education Policy 2020 — education.gov.in
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