Concept explainers
Interpretation:
Valance shell electron and electron dot symbol of the element should be identified for 4A elements.
Concept introduction:
The periodic table is given below,
The electron configuration is the distribution of electrons of an atom or molecule in atomic or molecular orbitals. Atom consists of s, p, d, and f orbitals.
The Aufbau principle:
The Aufbau principle is states that in the ground state of an atom, electrons fill atomic orbitals of the lowest available energy levels before occupying higher levels. For example, the 1s shell is filled before the 2s subshell is occupied.
The subshell ordering by this rule is
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Fundamentals Of General, Organic, And Biological Chemistry Volume 1 Second Custom Edition For Washington State University, 2/e
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