A Markov chain is a discrete random process with the property that the next state depends only on the current state (wikipedia). A Markov chain is a discrete random process with the property that the next state depends only on the current state (wikipedia). So $P(X_n | X_1, X_2, \ldots X_n-1) = P(X_n | X_{n-1})$.
Some people find molecules and compounds confusing. Here's how to remember the difference. If you join two different chemical elements together, you can often make a completely new substance. Glue two atoms of hydrogen to an atom of oxygen and you'll make a single molecule of water.
Report Abuse. Yes, atoms make up molecules. For example, water molecules are made up of two hydrogen atoms and one oxygen atom (represented as H2O) and table salt is made up of one sodium atom and one chlorine atom (represented as NaCl).lements-hydrogen, oxygen, chlorine... All the elements that exist are indicated in the Periodic Table. These elements exist as single atoms (e.g. neon, argon), two atoms covalently joined together (e.g. oxygen, hydrogen) and as macromolecules (e.g. diamond).