8
All have six valence electrons.
4 valence electrons are present in methane
Boron has 3 valence electrons.
36
4
8 valence electrons
chocolate
5 valence electrons because it needs to gain 3 electrons in order to become stable
Atoms become stable when they have a full outer electron shell, which typically means having 8 valence electrons (except for hydrogen and helium, which are stable with 2 valence electrons). This stable configuration is known as the octet rule.
Radon, being a noble gas, has 8 valence electrons, giving it a stable octet.
Argon is a noble gas. All noble gases have stable outer shells with 8 valence electrons (with the exception of He, which as 2).
A type of element that fits this description is a noble gas. Noble gases have a full valence shell of electrons, making them stable and unreactive. While they have many valence electrons, they are not conductors of electricity because they do not readily lose or gain electrons.
8 valence electrons are there in in neon's family .They are stable in nature.
Nonmetals will undergo chemical reactions that result in a stable electron configuration of 8 electrons in the outer shell. The number of valence electrons tells you have many they have in their outer shell prior to any chemical reaction, and therefore, how many more electrons they need to get a complete set of 8. So for example, oxygen has 6 valence electrons and therefore needs 2 more to have 8, so it will form an ion with a charge of minus two, which is the charge that is carried by the additional two electrons that oxygen will acquire. Chlorine has 7 valence electrons, therefore it needs just one more electron to complete its outer shell, and as an ion will have a charge of minus one. Nitrogen has 5 valence electrons, so it needs 3 more, and will form an ion with a charge of minus three.
Calcium loses 2 valence electron to become ionized.
A sulfur atom has 6 valence electrons, while a sulfide ion has 8 valence electrons because it gains two electrons to achieve a stable electron configuration.
A bromine anion has 8 valence electrons. This is because bromine, with 7 valence electrons, gains one extra electron when it forms an anion to achieve a full octet and become stable.