K+
Ca2+
Sodium looses one electron to achieve noble gas electronic configuration.The formula of ion formed is Na+
2.8.8
K+ K is potassium. When it becomes ionized, it loses an electron and therefore becomes positive, hence the + sign
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+.
K+
Na+ is the formula of the ion formed when sodium achieves a stable electron configuration.
Potassium has one valence electron that it would lose to become octet happy, or like a noble gas..therefore K(+1 charge)
P3-
Ca2+
s2,s2 p6.s1
Sodium looses one electron to achieve noble gas electronic configuration.The formula of ion formed is Na+
K+And the K ion configuration is 1s2 2s2 2p6 3s2 3p6Noble gases have the configuration up to 3p6Pseudo noble gases have it up to 3d10
2.8.8
Sulfur atoms will gain two electrons in order to achieve a noble gas electron configuration. A sulfide ion has the formula S2-.
P-3 ion is formed with 18 electrons.
K+ K is potassium. When it becomes ionized, it loses an electron and therefore becomes positive, hence the + sign