The ratio of the atomic numbers of two elements A and B is 2 : 3. A is an inert gas with the first 3 orbits completely filled. Identify A and B and write their electronic configurations.
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Solution
Electronic configuration: It is a method to show the distribution of electrons in an atom.
The electrons are formally situated in these subshells and the notations aid in determining their positions and the electrical configuration.
Since is an inert gas with an entirely filled first three orbits, its electronic configuration is .
In the neutral atom, the total number of protons equals the total number of electrons. As a result, the inert gas A's atomic number is = .
And the ratio of the atomic numbers of two elements and is 2 : 3.
So, the atomic number of element = .
Hence, the electronic configuration of is .
The atomic number of is and its electronic configuration is .
The atomic number of is and its electronic configuration is .