The forward slipping movement of the body of one of the lower lumbar vertebrae on the vertebra or sacrum below it. spondylosis A degenerative disorder that can cause the loss of normal spinal structure and function.
The formula is MgâPâ. This is a reaction between a metal and a nonmetal. The product will be the ionic compound, magnesium nitride. Step 1. Identify the atomic symbols of the cation and anion. Magnesium is Mg and phosphide is P. Step 2. Identify the charge on each ion and place it on each symbol. Mg is in Group 2, so we write MgÂ²âº. P is in Group 15, so it needs 3 electrons to complete its octet.
A chemical formula is a way of expressing information about the proportions of atoms that constitute a particular chemical compound, using a single line of chemical element symbols and numbers. PubChem uses the Hill system whereby the number of carbon atoms in a molecule is indicated first, the number of hydrogen atoms second, and then the number of all other chemical elements in alphabetical order.