Published on Aug 14, 2013. Audio and video pronunciation of Dijana brought to you by Pronounce Names (http://www.PronounceNames.com), a website dedicated to helping people pronounce names correctly. For more information about this name, such as gender, origin, etc., go to http://www.PronounceNames.com/Dijana.
A chlorine atom has 7 electrons in its outer shell. Chlorine is in group 7 of the periodic table. A hydrogen atom has 1 electron in its outer shell. Hydrogen can only form 1 bond. The hydrogen atom will share its 1 electron with chlorine to form one covalent bond and make a hydrogen chloride molecule (HCl).This is a picture of a hydrogen chloride molecule. hydrogen atom has 1 electron in its outer shell. Hydrogen can only form 1 bond. The hydrogen atom will share its 1 electron with chlorine to form one covalent bond and make a hydrogen chloride molecule (HCl).
If the atom participates in covalent bonding, the valency tells the number of electrons the atom shares with its partner atom(s) . The following example will clarify the concept of valency: (a) 1 atom of chlorine combines with 1 atom of hydrogen to form HCl (hydrogen chloride). The valency of chlorine is thus 1 (from the definition of valency). (b) 1 atom of oxygen combines with 2 atoms of hydrogen to form H2O (water or hydrogen monoxide).