AP BIOLOGY

Detailed explanation-1: -Valence electrons are the electrons in the outermost shell, or energy level, of an atom. For example, oxygen has six valence electrons, two in the 2s subshell and four in the 2p subshell. We can write the configuration of oxygen’s valence electrons as 2s²2p⁴.

Detailed explanation-2: -Electrons that are in the outermost energy level of an atom are called valence electrons. The position of an element within a period can help to determine the element’s electron configuration and number of valence electrons.

Detailed explanation-3: -If the outermost shell is completely filled with electrons then it is a noble gas. If the outermost shell is partially filled with electrons then it becomes a valence shell. The electrons present in the valence shell are known as valence electrons.

Detailed explanation-4: -The electrons on the outermost energy level of the atom are called valence electrons. The valence electrons are involved in bonding one atom to another. The attraction of each atom’s nucleus for the valence electrons of the other atom pulls the atoms together.

Detailed explanation-5: -valence, also spelled valency, in chemistry, the property of an element that determines the number of other atoms with which an atom of the element can combine. Introduced in 1868, the term is used to express both the power of combination of an element in general and the numerical value of the power of combination.