s-block and p-block reactivity?

Moderators: Chem_Mod, Chem_Admin

Sarah Bui 2L
Posts: 61
Joined: Fri Sep 28, 2018 12:29 am

s-block and p-block reactivity?

Postby Sarah Bui 2L » Sun Oct 28, 2018 10:18 pm

I believe it is question 2.75 in the sixth edition where it is asking about whether the s-block or the p-block is more reactive. I know that elements in the s-block have lower ionization energies, but does this quality make it more reactive than p-block?

mahika_nayak_3L
Posts: 60
Joined: Fri Sep 28, 2018 12:26 am

Re: s-block and p-block reactivity?

Postby mahika_nayak_3L » Sun Oct 28, 2018 10:22 pm

Yes, having a lower ionization energy means that these atoms can more easily lose or gain an electron, and thus more easily form bonds with other atoms. This lower ionization energy translates to increased reactivity, because the atoms can form compounds with other atoms with greater ease.

Diviya Khullar 1G
Posts: 59
Joined: Fri Sep 28, 2018 12:19 am

Re: s-block and p-block reactivity?

Postby Diviya Khullar 1G » Sun Oct 28, 2018 10:29 pm

Elements in the s-block are more reactive. Yes, because they do have lower ionization energies, it is easier to remove electrons from the outer shell of these elements, making them more reactive. s-block elements usually have one or two electrons in the outer most shell, and it requires less energy to give away those two electro then to gain more electrons and fill up the outer shell to become stable.

whitney_2C
Posts: 74
Joined: Fri Sep 28, 2018 12:28 am

Re: s-block and p-block reactivity?

Postby whitney_2C » Sun Oct 28, 2018 10:30 pm

The elements in the s-block are significantly more reactive than those in the p-block and this is because of their very low ionization energies whereas the p-block elements do have high electron affinities but still are not comparable to s-block's ionization energies. To see how reactive group 1 metals are watch this video: https://www.youtube.com/watch?v=m55kgyApYrY

Ronald Thompson 1F
Posts: 59
Joined: Fri Sep 28, 2018 12:25 am

Re: s-block and p-block reactivity?

Postby Ronald Thompson 1F » Sun Oct 28, 2018 10:35 pm

Yes, having lower ionization makes it easier for them to gain or lose electrons.

Nell Mitchell 1E
Posts: 31
Joined: Fri Sep 28, 2018 12:16 am

Re: s-block and p-block reactivity?

Postby Nell Mitchell 1E » Sun Oct 28, 2018 11:33 pm

Does this mean then that ionization energy and reactivity are inverses? Like low ionization energy elements are always more reactive and less reactive elements always have high ionization energies?

Angel Chen 2k
Posts: 59
Joined: Fri Sep 28, 2018 12:20 am

Re: s-block and p-block reactivity?

Postby Angel Chen 2k » Sun Oct 28, 2018 11:57 pm

I don't think ionization energy and reactivity are directly inverse. Low ionization energy only indicates the high reactivity with atoms with low electronic affinity. More specifically, the reactions between them are formed through ionic bonding. However, it does not indicate the reactivity of reactions formed through covalent bonding or metallic bonding. As a result, ionization energy and reactivity are not necessarily inverse.


Return to “Trends in The Periodic Table”

Who is online

Users browsing this forum: No registered users and 1 guest