The element in period 3 with 8 electrons in its outermost energy level is chlorine (Cl).
Helium has a full outermost energy level containing only two electrons.
Valence electrons are the electrons in the outermost energy level of an atom that are involved in forming chemical bonds with other atoms.
Carbon's outermost energy level contains 4 electrons, and it needs 4 more electrons to have this energy level filled (total of 8 electrons).
Valence electrons are the electrons in the outermost energy level of an atom. They are involved in chemical bonding and determine the reactivity of an element. The number of valence electrons influences the element's properties and behavior in chemical reactions.
The element in period 3 with 8 electrons in its outermost energy level is chlorine (Cl).
Helium has a full outermost energy level containing only two electrons.
It is the most stable element in the universe and does not need anymore electrons. Its outermost energy level is full.
Valence electrons are found in the outermost energy level of an atom, also known as the highest principal energy level. These are the electrons involved in chemical bonding and determining the reactivity of an element.
Mg -magnesium.
Helium (He)
Valence electrons are the electrons in the outermost energy level of an atom that are involved in forming chemical bonds with other atoms.
Helium has only 2 electrons and its energy level is full.
The element carbon
Valence electrons are the electrons in the outermost energy level of an atom. They are involved in chemical bonding and determine the reactivity of an element. The number of valence electrons influences the element's properties and behavior in chemical reactions.
Carbon's outermost energy level contains 4 electrons, and it needs 4 more electrons to have this energy level filled (total of 8 electrons).
The velence electron will vary for element to element and can have 1 to 8 valence electrons.