Hot Student Stories
top-5-grammar-and-spelling-checkers-to-rock-in-2019

Which element has 1s2s2p3s3p electron configuration?

Alexa Spicer

in Chemistry

follow
followin
1 answer
8 views

1 answer


James Washington on March 13, 2018

Response: The Item can be one of, I) Aluminium (Al) (ii) Silicon (si) (iii), Phosphorus (P) (iv) to Sulfur (S) (v) Chlorine (Cl)Or (vi) Argon (Ar)Explanation: The best and easiest way to identify the main group (s and p block) elements using the periodic table, is by the study of their electron configuration. The Group id of an Element: The group of an element can be identified by counting the number of valence electrons present in the valence shell of an atom.Examples:i) Sodium: Electron configuration of Sodium is as follows, 1s2, 2s2, 2p⁶, 3s1As there is only one valence electron in valence shell sodium (3 shell), therefore, is present in group 1 of the periodic table.(ii) Neon: Electronic configuration of Neon is as follows, 1s2, 2s2, 2p⁶As there are eight valence electrons in the valence shell of neon (2nd shell), therefore, is present in the group 8 of the periodic table.The identification Period of an Element: The number of period in which the element is present is equal to the valence shell number of that element.Examples:i) Sodium: Electron configuration of Sodium is as follows, 1s2, 2s2, 2p⁶, 3s1As the valence shell is 3, therefore, the Sodium is present in the 3rd Period.(ii) Neon: Electronic configuration of Neon is as follows, 1s2, 2s2, 2p⁶As the valence shell is 2, therefore, the Neon is present in the 2nd Period.Conclusion: As in the statement we are not given with the number of electrons in shells and sub-shells electronic configuration therefore, we can conclude that this electronic configuration can belong to anyone;Aluminum, as has the electronic configuration 1s2, 2s2, 2p⁶, 3s2, 3p1.De silicon, because it has electronic configuration 1s2, 2s2, 2p⁶, 3s2, 3p2.The phosphorus, because it has electronic configuration 1s2, 2s2, 2p⁶, 3s2, 3p3.The sulfur, because it has electronic configuration 1s2, 2s2, 2p⁶, 3s2, 3p⁴.The chlorine, as has the electronic configuration 1s2, 2s2, 2p⁶, 3s2, 3p⁵.Argon, because it has electronic configuration 1s2, 2s2, 2p⁶, 3s2, 3p⁶.As the valence shell is the same and extend up to p sub-shell, therefore, this electron configuration for an atom present in the period 3 and p block respectively.


Add you answer