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  1. Problems
  2. /Structure of the Atom
  3. /Quantum Mechanical Model of the Atom

Quantum Mechanical Model of the Atom

Chemistry
+ Upload a Problem
More in Structure of the AtomSubatomic Particles and Atomic ModelsElectronic Configuration and ValencyIsotopes and IsobarsLight, Atomic Spectra and the Bohr ModelQuantum Mechanical Model of the Atom
12 problems
Type:
1.
Write the electron configurations of V²⁺, Co³⁺, Cu⁺ and Mn²⁺.
High School (11–12) · Electronic Configuration and Valency, Quantum Mechanical Model of the AtomStemPy LabStemPy Lab
Medium
2.
By the usual order of filling, copper should be [Ar] 3d⁹ 4s².
High School (11–12) · Electronic Configuration and Valency, Quantum Mechanical Model of the AtomStemPy LabStemPy Lab
Medium
3.
Write the electron configurations of silicon (Z = 14), vanadium (Z = 23) and manganese (Z = 25)…
High School (11–12) · Electronic Configuration and Valency, Quantum Mechanical Model of the AtomStemPy LabStemPy Lab
Easy
4.
Use the (n + l) rule to put the orbitals 7s, 5f, 6d, 7p and 4f in the order in which they fill.
High School (11–12) · Quantum Mechanical Model of the AtomStemPy LabStemPy Lab
Medium
5.
In a hydrogen atom, the 3s, 3p and 3d orbitals have the same energy.
High School (11–12) · Quantum Mechanical Model of the AtomStemPy LabStemPy Lab
Medium
6.
Find the number of radial nodes, angular nodes and total nodes of the orbitals 5p, 5d and 6s.
High School (11–12) · Quantum Mechanical Model of the AtomStemPy LabStemPy Lab
Medium
7.
Say which of these sets of quantum numbers (n, l, ml, ms) are not allowed, and why.
High School (11–12) · Quantum Mechanical Model of the AtomStemPy LabStemPy Lab
Medium
8.
Write all the allowed values of l and ml for the shell with n = 2.
High School (11–12) · Quantum Mechanical Model of the AtomStemPy LabStemPy Lab
Easy
9.
Give two reasons, one from de Broglie and one from Heisenberg, why we cannot say that an electron…
High School (11–12) · Quantum Mechanical Model of the AtomStemPy LabStemPy Lab
Medium
10.
The position of an electron is known to within 25 pm.
High School (11–12) · Quantum Mechanical Model of the AtomStemPy LabStemPy Lab
Medium
11.
A tennis ball of mass 0.058 kg moves at 50 m s⁻¹.
High School (11–12) · Quantum Mechanical Model of the AtomStemPy LabStemPy Lab
Medium
12.
An electron and a proton each move at 3.0 × 10⁶ m s⁻¹.
High School (11–12) · Quantum Mechanical Model of the AtomStemPy LabStemPy Lab
Easy