2 or more electrons, because Oxygen already has 8.
This atom must gain 3 electrons to achieve an octet.
In aluminum oxide (Al2O3), aluminum typically shares 3 electrons with oxygen to form covalent bonds. Oxygen needs 2 electrons to fulfill its octet, so it will form a double bond with one aluminum atom. This results in the formation of a stable structure for the aluminum oxide compound.
One atom of nitrogen has 7 protons, 7 neutrons, and 7 electrons.
A neutral atom can have a maximum of 8 valence electrons, following the octet rule. This applies to elements in the second period and beyond on the periodic table. Exceptions include hydrogen and helium, which can have a maximum of 2 valence electrons.
An oxygen atom is able to attract 2 additional electrons to complete its valence shell and achieve a stable octet configuration. This is because oxygen has 6 valence electrons and needs a total of 8 electrons for stability.
This atom must gain 3 electrons to achieve an octet.
An oxygen atom can share up to two electrons to form a covalent bond with another atom. This is because oxygen has six valence electrons and can complete its octet by sharing two electrons with another atom.
A chlorine atom must gain one electron to complete its octet, as it has 7 electrons in its outer shell and needs 8 to achieve a stable electron configuration.
A bromine atom typically has seven electrons in its outer shell, which means it only needs one more electron to have a full octet of eight electrons. Bromine can achieve an octet by gaining one electron to form a stable bromide ion with a -1 charge.
A potassium atom has 1 electron in its outer shell. In order to satisfy the octet rule, it needs to donate 7 electrons to another atom to reach a stable configuration with a full outer shell.
It'll have to lose two to have a stable octet.
Atoms in the oxygen family can gain or share two electrons in order to achieve an octet of electrons.
There are 8 electrons in the outer shell of a xenon atom. Xenon is in group 18 of the periodic table, which means it has a full octet of electrons in its outer shell.
Each sodium atom will lose one electron to achieve a complete octet in its outer shell, as the octet rule dictates atoms will gain or lose electrons to achieve a stable electron configuration with 8 electrons in the outer shell.
When sodium becomes an ion, it loses one electron to fulfill the octet rule. A neutral sodium ion has 11 electrons, so an ion will have 10.
In aluminum oxide (Al2O3), aluminum typically shares 3 electrons with oxygen to form covalent bonds. Oxygen needs 2 electrons to fulfill its octet, so it will form a double bond with one aluminum atom. This results in the formation of a stable structure for the aluminum oxide compound.
A calcium ion (Ca2+) loses two electrons from an atom to achieve a stable octet electron configuration. This results in a +2 charge on the calcium ion.