Generally speaking, the metals give away electrons during a reaction. Not all metals are equally reactive, however. The metals of group 1 (the alkali metals) all have 1 valence electron. This 1 electron is given away very easily, making this group the most reactive of all the metals. They are so reactive, in fact, that these elements do not exist by themselves; only in compounds.
The same number of valence electrons as xenon.
If one electron is gained, then it has a charge of -1.
Chlorine atoms have 7 outermost electrons and need to gain an electron to achieve the stability of a full valence shell.
Sodium and chlorine are a perfect match for ionic bonding because sodium easily loses an electron to achieve a stable electron configuration with a full valence shell, while chlorine easily gains an electron to achieve the same. This transfer of electrons allows both elements to achieve a more stable, lower energy state by forming oppositely charged ions that are attracted to each other in an ionic bond.
Ion. Any atom that loses or gains an electron becomes an ion.
The same number of valence electrons as xenon.
An Electron
A negatively charged "ion".
Ion. Any atom that loses or gains an electron becomes an ion.
When an atom gains or looses a valence electron it becomes a charged particle called an ion
Ion.
Ion.
If a chlorine atom gains a valence electron, it becomes a negatively charged ion known as a chloride ion (Cl⁻). Conversely, if it were to lose a valence electron, which is less common for chlorine, it would become a positively charged ion, but this scenario is unlikely due to its high electronegativity. Thus, the most common ion formed by chlorine is Cl⁻ when it gains an electron.
If one electron is gained, then it has a charge of -1.
because they can each get a full valence shell by combining electrons, and have no need to share with other elements. (NA gives away one electron, giving it eight in its valence shell, and CL gains that electron, which also makes its valence shell eight).
ION haha apex is pretty boring huh
Hydrogen and helium have different valence electron configurations. Hydrogen has one valence electron, and helium has two valence electrons. However, hydrogen does typically form covalent bonds in which it shares an electron, and thereby gains an effective electron configuration of two, like helium. Hydrogen also can form the H+ ion which has no electrons.