definitive diagnosis of a metacarpal fracture requires a series of hand radiographs to clearly evaluate the hand bones including the metacarpals in certain cases where the fracture needs to be seen in greater detail a ct scan can be considered but this is highly unusual
HYDROGEN BONDS. 1) Bond formed between the positive end of a dipole generated between a Hydrogen bound to Cl, F, N, or O and the lone pair of electrons on a Cl, F, N, or O atom. 2) Extremely significant in biological molecules (protein folding, DNA structure).
Main Types of Chemical Bonds. The two main types of bonds formed between atoms are ionic bonds and covalent bonds. An ionic bond is formed when one atom accepts or donates one or more of its valence electrons to another atom. A covalent bond is formed when atoms share valence electrons.