Because calcium has 2 valence electrons, it needs to get rid of them to have a stable noble gas conformation. Chlorine atom has 7 VE and only needs to gain one electron to have the noble gas conformation. Therefore one calcium will give one electron to two chlorine atoms, therefore resulting in an ionic bond.
ionic bond
Ion. Any atom that loses or gains an electron becomes an ion.
Calcium usually loses 2 electrons, giving a cation of Ca2+
ionic
Valence electron - Sodium loses one electron to form a sodium ion (valence of 1).
Forms an ion. e.g if chlorine loses an electron it will go form Cl2 ---> cl2+
AnswerA neutral atom that loses an electron becomes an ion that is positively charged (also called a cation).When a calcium atom loses two electrons it becomes positively charged.
ionic bond
Calcium loses two electrons; the cation is Ca2+.
The ATOM decreases in size when it loses an electron and increases when electrons are added.
Ion. Any atom that loses or gains an electron becomes an ion.
Ion. Any atom that loses or gains an electron becomes an ion.
Calcium usually loses 2 electrons, giving a cation of Ca2+
The atom that gains electron becomes an anion. The atom that loses electron becomes a cation.
Sodium chloride
Ionic Bonding
ionic