Protons are a type of subatomic particle with a positive charge. Protons are bound together in an atom's nucleus as a result of the strong nuclear force. Neutrons are a type of subatomic particle with no charge (they're neutral).
the nucleus contains two types of subtomie particles, protons and neutrons. The protons have a positive electrical charge and the neutrons have no electrical charge.
Heat is always transferred from the object at the higher temperature to the object with the lower temperature. For a gas, the heat transfer is related to a change in temperature.