The goal (in general) of atoms is to get a full outer shell.
Potassium has only one electron in the outer shell, so it wants to give it away to another atom so that it can have that full outer shell.
Therefore potassium, lithium, sodium, etc. lose their electrons quickly.
The Ion form of Potassium is 1+, meaning that it has one more proton than it has electrons. That would mean that it has 18 Electrons in total because it has 19 protons, as indicated by its atomic number
The Potassium has total 19 electrons ,2,8,8,1. the loss of first electron is from outermost shell which requires no a high amount of energy but the removal of 2nd electron from complete octet requires very high amount of energy and almost impossible to remove so the +2 oxidation state for potassium is not possible under normal conditions.
Potassium is a group 1 metal with one electron in its valence shell. Electronic configuration [Ar] 4s1
Losing one electron gives it the stable configuration of argon a noble gas.
Then a positive ion is made (cation, K+)
K --> K+ + e-
Only one electron
lose only one electron
ll lose only 1 electron
When a fluorine atom gains an electron, it forms a negative ion.
positively
4
because the second ionisation means removing the second electron from the potassium atom. Potassium only has one electrin in its outer most shell so the second electron would be in another electron shell which is closer to the nucleus meaning there is a stronger attraction to that electron because of the protons in the nucleus which are positive and attrct the negative electrons so more energy is needed to remove the second electron
Potassium lose an electron (iodine gain this electron) to form potassium iodide, KI.
lose only one electron
ll lose only 1 electron
A potassium atom "always" loses exactly one valence electron when it reacts with another element, because one valence electron in a potassium atom has a much lower ionization energy requirement than any other electron in the same atom. (This property is generally ascribed to the fact that when a potassium loses exactly one electron, it acquires the very stable electron configuration of the noble gas argon.) A chlorine atom has a very strong attraction (its electronegativity) for exactly one electron, which gives the charged atom the electron configuration of an argon atom. Therefore, when a potassium atom is close enough to a chlorine atom, one electron is transferred between to form an ionic bond and a formula unit of the compound potassium chloride.
The symbol for the cation formed when a potassium atom loses one electron is K+, and is named the potassium ion.
When a potassium atom becomes an ion, the potassium atom donates one of its electrons, specifically the only electron in its valence shell, to another more electronegative atoms. The original potassium atom then becomes a potassium cation with formula K+.
When a fluorine atom gains an electron, it forms a negative ion.
positively
4
ionic
argon atom