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).
Examples of stable atoms. The two types of chemical bonds that atoms can form to achieve stability are called ionic bonds and covalent bonds. In ionic bonds, atoms donate or receive electrons to achieve stability. In covalent bonds, atoms share electrons to achieve stability.