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When elements are stable?
Elements are stable when they have completely filled (or half filled) orbitals.
If atom is chemically stable if it and outer energy level is filled with what?
A half filled sub-shell is more stable than other partially filled shells. As an example use Chromium. It should by logic have the following: Sc = [Ar]4s23d1 Ti = [Ar]4s23d2 V = [Ar]4s23d3 Cr should in theory be Cr = [Ar]4s23d4 but it is not. Half filled shells are more stable so the configuration is Cr = [Ar]4s13d5 two half filled sub levels and then Manganese is Mn = [Ar]4s23d5 one full and one half filled level.
Are atoms most stable when they have partially filled shells?
No, atoms are most stable when their outermost electron shells are completely filled. This is because a full outer shell results in a lower energy state, making the atom more stable. Partially filled shells can lead to greater reactivity as atoms seek to fill or empty their outermost shell.
Is Mn2 plus more stable than Mn3 plus?
Yes, it is. If we look at the electronic configuration of Mn2+ , it is 1s2 2s2 2p6 3s2 3p6 4s0 3d5 . The 3d orbital is half-filled, which is relatively stable. in Mn3+ , there are only 4 electrons in the 3d orbital, which is less stable.
Why do Cr and Cu doesn't contain a a full 4s orbital?
In the case of chromium (Cr), the electron configuration of 3d54s1 is more stable than 3d44s2. A half-filled sublevel is more stable than a sublevel that is less than half full. In the case of copper (Cu), the electron configuration of 3d104s1 is more stable than 3d94s2, again because a full sublevel and a half-filled sublevel is more stable.
Is half and full filled stability theory also applicable for f orbital like d orbital?
Yes, the half-filled and fully-filled stability principles can also be applied to f orbitals in the same way as they are for d orbitals. These principles predict enhanced stability for half-filled and fully-filled f orbitals, resulting in more stable configurations for elements with these electron configurations.
Why are two molecules of oxygen more stable than three molecules of oxygen?
This is because in nitrogen the 2p subshells are filled by 3 electrons which is half filled electronic configuration. But oxygen has to lose an electron to attain the half filled electronic electronic configuration. Hence nitrogen is more stable than oxygen.
Why ferric ion is more stable than ferrous ion?
Ferric ion (Fe3+) is more stable than ferrous ion (Fe2+) because it has a full d5 electron configuration, which is more stable than the half-filled d6 configuration of ferrous ion. The presence of a full d subshell provides greater stability due to increased exchange energy.
Why the ionization potential of 2-A group is more than the ionization potential of 1-A group?
Completely filled s orbital is more stable than half filled s orbitals and it is difficult to remove electrons from the former due to extra stibility. Group IIA elements (or alkaline earth metals) have completely filled s orbitals, whereas group IA elements have half filled s orbitals.
How the electron configuration of chromium is used to strengthen alloys?
Chromium has a half filled D orbital so is stable.
Which is the most stable out of the two Oxygen or Helium?
Helium is more stable, because it has completely filled valence orbitals.
What is the difference between a stable and unstable electronic configuration?
Stable electronic configuration is when the valence shell of an element is completely filled (8 electrons) whereas unstable electronic configuration is when the valence shell of an element is not completely filled
