yes
No, it is not true. The k2 ion, also known as the potassium ion (K+), forms because potassium (K) loses one electron to achieve a stable electron configuration. It is not isoelectronic with chlorine (Cl-) which gains an electron to achieve stability in its ionic form.
I do not think that Bromine behaves like Krypton in chemical reactions. Krypton is very unreactive due to the fact that it has a full stable set of valence electrons, and Bromine is extremly reactive and has high electronegativity because is does not have a full stable set of valence electrons. Although, I do suppose that if a Bromine atom were to become a negative ion (Br+1) by gaining another electron, it would act as if it were a Krypton atom.
Yes, its negative ion is called Bromide = Br-
No, elemental Bromine or Br2 is not an ion
The Sulfide ion, S2-, is isoelectronic with Cl-
When bromine reacts to form an ion, it becomes isoelectronic with krypton. Both bromine (Br) and krypton (Kr) have 36 electrons in their neutral state. When bromine gains one electron to form the Br- ion, it now also has 36 electrons like krypton.
No, argon does not form an ion isoelectronic with krypton. Argon has 18 electrons, while krypton has 36 electrons. To be isoelectronic, the two species should have the same number of electrons.
Argon is isoelectronic with the sulfide ion.
Krypton and selenide ion are isoelectronic with 36 electrons each
None. The Se2- ion is isoelectronic with Krypton.
S2- ion is isoelectronic with argon (with 18 electrons).
(Ar) Argon because Ca ion is Ca2+ so it give away 2 electrons
Bromide ion is isoelectronic with Krypton.
The only elements that form an ion isoelectric with krypton are the elements in Period 4 and Columns 15 through 17 of a wide form periodic table and the elements in Period 5 and Columns 1 and 2 of a wide form periodic table. All other elements do not form such an ion.
Krypton and Selenide ion have 36 electrons and are isoelectronic
Neon is isoelectronic with the sodium ion.
Oxide ion (O2-) is isoelectronic with neon. Both species have the same number of electrons, which is 10.