If the hydrogen atoms get close enough together, and hot enough, they will eventually fuse into helium. This is what happens inside stars.
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The nuclear energy available in the hydrogen. This is a kind of potential energy. Hydrogen has a higher energy level than helium.
Nuclear fusion starting with hydrogen.
Nuclear fusion starting with hydrogen.
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He is starting an Internet website
The season is starting in the summer.
Hitler invaded Poland starting WW2.
Elements are listed by the number of protons they contain starting with Hydrogen which has one proton.
When hydrogen burns in chlorine gas, it undergoes a chemical change. This is because new substances are formed as a result of the reaction, such as hydrogen chloride. The properties of the starting materials are different from those of the products.
Some words are: heat, heat flow, herbivore, humidity, humus, hydroelectirc energy, hypothesis.
Four.