8 valence electrons
Sodium has one valence electron in its outermost shell (the third electron shell). To achieve a stable electron configuration, similar to that of the nearest noble gas (neon), sodium needs to lose this single valence electron rather than gain more. Therefore, sodium does not need additional valence electrons; it only needs to lose its one valence electron to achieve stability.
Chlorine has seven valence electrons, as it is in Group 17 of the periodic table. To achieve a stable electron configuration, it needs one additional electron to fill its outer shell, reaching a total of eight valence electrons. Therefore, chlorine would need one more valence electron to complete its octet.
ONE (apex)
To start off, the electrons on the outermost energy level of an atom are called valence electrons. You can tell how many valence electrons an energy level has by finding out its group number. If an element is in group one, than it has one valence electron.
Boron does not need an octet in its valence shell because it is an exception to the octet rule due to its electron configuration and bonding behavior. Boron typically forms stable compounds with fewer than eight electrons in its outer shell.
8 valence electrons
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Sodium has one valence electron in its outermost shell (the third electron shell). To achieve a stable electron configuration, similar to that of the nearest noble gas (neon), sodium needs to lose this single valence electron rather than gain more. Therefore, sodium does not need additional valence electrons; it only needs to lose its one valence electron to achieve stability.
It needs only 1 more electron since it already has 7 valence electrons.
Chlorine has seven valence electrons, as it is in Group 17 of the periodic table. To achieve a stable electron configuration, it needs one additional electron to fill its outer shell, reaching a total of eight valence electrons. Therefore, chlorine would need one more valence electron to complete its octet.
ONE (apex)
6 valence electrons need to be accommodated in the Lewis structure for OF2. This accounts for the oxygen atom's 6 valence electrons and the fluorine atom's 1 valence electron each.
To start off, the electrons on the outermost energy level of an atom are called valence electrons. You can tell how many valence electrons an energy level has by finding out its group number. If an element is in group one, than it has one valence electron.
Based on the octet rule, bromine requires exactly one electron to fill its valence shell.
Losing an electron cesium has a noble gas configuration.
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