David Werner M.D. is a male health care provider in State College, PA with Ophthalmologist listed as his primary specialization. His credentials are: M.D.. He graduated from University Of Vermont College Of Medicine in 1973 (around 45 years of experience). He lists the following medical group affiliations: Werner Eye Associates, P.c. His office phone number, address, ratings, services provided, comparisons, and specializations can be viewed below.
A molecule is formed when atoms join together by chemical bonds. There are over a hundred different types of atom, called elements. The atoms of a particular element are identical to each other.
A compound is a substance formed when two or more chemical elements are chemically bonded together. Two types of chemical bonds common in compounds are covalent bonds and ionic bonds.The elements in any compound are always present in fixed ratios. compound is a substance formed when two or more chemical elements are chemically bonded together. Two types of chemical bonds common in compounds are covalent bonds and ionic bonds. The elements in any compound are always present in fixed ratios.