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.
chlorine atom will first convert to the gaseous chlorine atom which will then add one electron to form chloride ion.
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.