An intramolecular force is any force that binds together the atoms making up a molecule or compound, not to be confused with intermolecular forces, which are the forces present between molecules. The subtle difference in the name comes from the Latin roots of English with inter meaning between or among and intra meaning inside. Chemical bonds are considered to be intramolecular forces, for example. These forces are often stronger than intermolecular forces, which are present between atoms or molecules that are not bonded.
1. Decreases by 4. (B) 2. The atomic number changes. (B) 3. 56/26 Fe. (C) 4. Potassium-40;t1/2=25 days. (B) 5. Takes place in the upper atmosphere. (A)
