Question

Group the following electron configurations in pairs that would represent similar chemical properties at their atoms;
a. 1s2 2s2 2p6 3s2
b. 1s2 2s2 2p3
c. 1s2 2s2 2p6 3s2 3p6 4s2 3d104p6
d. 1s22s2
e. 1s2 2s2 2p6
f. 1s2 2s2 2p6 3s2 3p3

Answer 1

c-d-e than
b-f than
a

Answer 2

Concept Introduction:-

A molecule's permanent geometry, created by the location of its bonds in space, is known as its molecular configuration.

Explanation:-

A question has been provided to us

We need to find the solution to the question

$a. 1s^2 2s^2$

$b. 1s^2 2s22p63s23p3$

$c. 1s^2 2s^22p^6$

It is because in atomic physics and quantum chemistry, the electron configuration is the distribution of electrons of an atom or molecule in atomic or molecular orbitals. Electronic configurations describe each electron as moving independently in an orbital, in an average field created by all other orbitals. Mathematically, configurations are described by Slater determinants or configuration state functions. According to the laws of quantum mechanics, for systems with only one electron, a level of energy is associated with each electron configuration and in certain conditions, electrons are able to move from one configuration to another by the emission or absorption of a quantum of energy, in the form of a photon.

Final Answer:-

The correct answer are $a. 1s^2 2s^2$, $b. 1s^2 2s22p63s23p3$ and $c. 1s^2 2s^22p^6$.

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