To find the valence electrons in an atom, identify what group the element is in. An element in group 1A has 1 valence electron. For example, Li is in group 1A, so that means it has one valence electron. If the element is... More »

Hydrogen has one valence electron because it is an element found in group 1 of the periodic table. It is a simple task to find the number of valence electrons from the periodic table by looking at the group number found ... More »

One neutral atom of carbon has four valence electrons. An easy way to tell how many valence electrons an element has is to look at the periodic table and find the element's main group number. Carbon is in group 4, which ... More »

Sulfur has six valence electrons, meaning that each atom of this element has six electrons in its outermost shell. The number of valence electrons that each element has can be predicted based on its location on the perio... More »

An atom of boron has three valence electrons. The valence electrons of boron occupy the second orbit around the nucleus of the boron atom. Thus, the boron atom has an electronic configuration of [He] 2s2 2p1. More »

One neutral atom of carbon has four valence electrons. An easy way to tell how many valence electrons an element has is to look at the periodic table and find the element's main group number. Carbon is in group 4, which ... More »

The properties of valence electrons are determined by the total number of electrons in an atom's outer shell. Atoms with similar numbers of valence electrons are classified into a specific group of elements, which may th... More »