The element from those four that is a noble gas is krypton.
Primary Consumers
Herbivores
Trophic level II Members
Solidity, solidness, denseness, thickness, substance, mass......
By adding the enthalpies of the intermediate reactions together to get the enthalpy of the desired reaction
Nuclear reaction involves two reacting particles a heavy target nucleus and a light bombarding particle and produces two new particles a heavier product nucleus and a lighter ejected particle.