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) ![1s^22s^22p^63s^23p^5](https://tex.z-dn.net/?f=1s%5E22s%5E22p%5E63s%5E23p%5E5)
(b) ![1s^22s^22p^63s^23p^63d^74s^2](https://tex.z-dn.net/?f=1s%5E22s%5E22p%5E63s%5E23p%5E63d%5E74s%5E2)
(c) ![1s^22s^22p^63s^23p^63d^{10}4s^24p^6](https://tex.z-dn.net/?f=1s%5E22s%5E22p%5E63s%5E23p%5E63d%5E%7B10%7D4s%5E24p%5E6)
(d) ![1s^22s^22p^63s^23p^64s^1](https://tex.z-dn.net/?f=1s%5E22s%5E22p%5E63s%5E23p%5E64s%5E1)
(e) ![1s^22s^22p^63s^23p^63d^24s^2](https://tex.z-dn.net/?f=1s%5E22s%5E22p%5E63s%5E23p%5E63d%5E24s%5E2)
(f) ![1s^22s^22p^63s^2](https://tex.z-dn.net/?f=1s%5E22s%5E22p%5E63s%5E2)
Answer :
(a)
→ Halogen
(b)
→ Transition metal
(c)
→ Transition metal
(d)
→ Halogen metal
(e)
→ Transition metal
(f)
→ Alkaline earth metal
Explanation :
Inert gas : These are the gases which lie in group 18.
Their general electronic configuration is:
where n is the outermost shell.
Halogen : These are the elements which lie in group 17.
Their general electronic configuration is:
where n is the outermost shell.
An alkali metal : These are the elements which lie in group 1.
Their general electronic configuration is:
where n is the outermost shell.
An alkaline earth metal : These are the elements which lie in group 2.
Their general electronic configuration is:
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) ![1s^22s^22p^63s^23p^5](https://tex.z-dn.net/?f=1s%5E22s%5E22p%5E63s%5E23p%5E5)
The element having this electronic configuration belongs to the halogen family.
(b) ![1s^22s^22p^63s^23p^63d^74s^2](https://tex.z-dn.net/?f=1s%5E22s%5E22p%5E63s%5E23p%5E63d%5E74s%5E2)
The element having this electronic configuration belongs to the transition family.
(c) ![1s^22s^22p^63s^23p^63d^{10}4s^24p^6](https://tex.z-dn.net/?f=1s%5E22s%5E22p%5E63s%5E23p%5E63d%5E%7B10%7D4s%5E24p%5E6)
The element having this electronic configuration belongs to the transition family.
(d) ![1s^22s^22p^63s^23p^64s^1](https://tex.z-dn.net/?f=1s%5E22s%5E22p%5E63s%5E23p%5E64s%5E1)
The element having this electronic configuration belongs to the halogen family.
(e) ![1s^22s^22p^63s^23p^63d^24s^2](https://tex.z-dn.net/?f=1s%5E22s%5E22p%5E63s%5E23p%5E63d%5E24s%5E2)
The element having this electronic configuration belongs to the transition family.
(f) ![1s^22s^22p^63s^2](https://tex.z-dn.net/?f=1s%5E22s%5E22p%5E63s%5E2)
The element having this electronic configuration belongs to the an alkaline earth metal.