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Octet configuration refers to how elements generally prefer to form bonds so as to attain an octet configuration, i.e. have 8 electrons in their valence shell.

For example, chlorine (Cl) is from Group VII and has 7 valence electrons. It will gain one electron (eg from sodium which loses one electron to form Na+) to form Cl-, which has 8 valence electrons and so fulfills the octet rule and is stable. The electronic configuration of sodium is 2.8.1 (if you're in secondary school), or 1s2,2s2,2p6,3s1 (more advanced). So by losing one electron to form Na+, sodium also attains octet configuration.

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Q: What is octet configuration?
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Related questions

Why are bonds form?

They are formed to attain a balance octet configuration


Can xenon expand its octet?

No, xenon cannot expand its octet because it is a noble gas with a stable electronic configuration of eight valence electrons.


What is the name when atoms have eight valence electrons in order to be stable?

Atoms with eight valence electrons are said to have achieved an octet configuration, which is associated with stability due to fulfilling the "octet rule." This stable configuration is typically found in noble gases and is sought after by other elements through bonding and sharing electrons.


Why is a filled valence shell often called an octet?

A filled valence shell often has 8 electrons, which is called an octet. This configuration is considered stable because it mimics the electron configuration of noble gases, which have full valence shells.


How many valence electrons does oxygen gain?

Oxygen gains 2 valence electrons to achieve a stable octet configuration.


How many more electrons does Fluorine need to have a stable octet?

Fluorine needs one more electron to have a stable octet, as it has 7 valence electrons and stable octet configuration is achieved with 8 electrons.


Does xenon gain or lose electrons to be a stable octet?

Xenon gains electrons to achieve a stable octet. It typically gains two electrons to reach a filled valence shell, resulting in a stable octet configuration.


How many electrons does oxygen need to reach an octet?

Oxygen needs to gain 2 electrons to reach an octet, as it has 6 valence electrons in its outer shell and requires a total of 8 electrons to have a stable octet configuration.


What is the importance of an atom having a noble gas configuration?

They are generally stable as they obey octet rule


The electron configuration of a fluoride ion F is?

1s2 2s2 2p6 is the electron configuration of the fluoride ion. It has a complete octet and is isoelectronic with neon. Before it becomes an ion, it is 1s2 2s2 2p5 Then it gains an electron and has a negative charge.


How many more electrons does chloride need in order to have a noble gas configuration?

Chloride needs one more electron to have a noble gas configuration, as it will then have the electron configuration of argon, a noble gas, which has a stable outer electron shell with a full octet.


How does calcium obey the octet rule when reating to form compounds?

Calcium is a group 2 element and typically loses 2 electrons to achieve a stable electron configuration with a full outer shell. By losing these 2 electrons, calcium is able to achieve an octet configuration in its outermost shell, similar to the noble gas configuration.