Outside the nucleus (where the protons and neutrons are) in a "cloud".
they form an ionic bond (:
A chlorine atom typically has 17 electrons in its electron cloud.
A chloride ion is slightly larger than a chlorine atom, because in an ion there is one more electron than proton, allowing the electron shells to expand slightly. In a chlorine atom, the number of electrons and protons is the same.
accepts an electron to become the chloride anion, Cl-
they form an ionic bond (:
positively
When an electron is transferred from a sodium atom to a chlorine atom, the chlorine atom becomes a negatively charged ion because it gains one electron. This negatively charged ion is known as chloride ion.
A charged chlorine atom, or a chlorine ion, would have gained or lost an electron. If it gained an electron, it would have a charge of -1. If it lost an electron, it would have a charge of +1.
A chlorine atom becomes an anion by gaining one electron to achieve a more stable electron configuration with a full outer shell. This extra electron gives the chlorine atom a negative charge, making it an anion.
In a reaction with chlorine, a lithium atom will lose an electron to achieve a stable electron configuration. Once it loses an electron, it becomes a lithium cation, which has a charge of +1.
The chloride ion (Cl-) has the same electron configuration as argon (1s2 2s2 2p6 3s2 3p6) because it has gained an electron compared to a neutral chlorine atom. The chlorine atom has an electron configuration of 1s2 2s2 2p6 3s2 3p5.
chlorine atom will first convert to the gaseous chlorine atom which will then add one electron to form chloride ion.