Respuesta :
This is an incomplete question, here is a complete question.
Determine whether each of the following electron configurations is an inert gas, a halogen, an alkali metal, an alkaline earth metal, or a transition metal. Justify your choices.
(a) [tex]1s^22s^22p^63s^23p^5[/tex]
(b) [tex]1s^22s^22p^63s^23p^63d^74s^2[/tex]
(c) [tex]1s^22s^22p^63s^23p^63d^{10}4s^24p^6[/tex]
(d) [tex]1s^22s^22p^63s^23p^64s^1[/tex]
(e) [tex]1s^22s^22p^63s^23p^63d^24s^2[/tex]
(f) [tex]1s^22s^22p^63s^2[/tex]
Answer :
(a) [tex]1s^22s^22p^63s^23p^5[/tex] → Halogen
(b) [tex]1s^22s^22p^63s^23p^63d^74s^2[/tex] → Transition metal
(c) [tex]1s^22s^22p^63s^23p^63d^{10}4s^24p^6[/tex] → Transition metal
(d) [tex]1s^22s^22p^63s^23p^64s^1[/tex] → Halogen metal
(e) [tex]1s^22s^22p^63s^23p^63d^24s^2[/tex] → Transition metal
(f) [tex]1s^22s^22p^63s^2[/tex] → Alkaline earth metal
Explanation :
Inert gas : These are the gases which lie in group 18.
Their general electronic configuration is: [tex]ns^2np^6[/tex] where n is the outermost shell.
Halogen : These are the elements which lie in group 17.
Their general electronic configuration is: [tex]ns^2np^5[/tex] where n is the outermost shell.
An alkali metal : These are the elements which lie in group 1.
Their general electronic configuration is: [tex]ns^1[/tex] where n is the outermost shell.
An alkaline earth metal : These are the elements which lie in group 2.
Their general electronic configuration is: [tex]ns^2[/tex] where n is the outermost shell.
Transition elements : They are the elements which lie between 's' and 'p' block elements. These are the elements which lie in group 3 to 12. The valence electrons of these elements enter d-orbital.
Their general electronic configuration is: where n is the outermost shell.
(a) [tex]1s^22s^22p^63s^23p^5[/tex]
The element having this electronic configuration belongs to the halogen family.
(b) [tex]1s^22s^22p^63s^23p^63d^74s^2[/tex]
The element having this electronic configuration belongs to the transition family.
(c) [tex]1s^22s^22p^63s^23p^63d^{10}4s^24p^6[/tex]
The element having this electronic configuration belongs to the transition family.
(d) [tex]1s^22s^22p^63s^23p^64s^1[/tex]
The element having this electronic configuration belongs to the halogen family.
(e) [tex]1s^22s^22p^63s^23p^63d^24s^2[/tex]
The element having this electronic configuration belongs to the transition family.
(f) [tex]1s^22s^22p^63s^2[/tex]
The element having this electronic configuration belongs to the an alkaline earth metal.
