What is silicon? Atoms, elements, chemistry
Diagram of a silicon atom When a red giant star is getting older and runs out of helium fuel, it starts to convert the oxygen atoms in the star into silicon [...]
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06, 2017
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06, 2017
What is oxygen? Atoms, elements, chemistry
Diagram of an oxygen atom When a star has changed all of its hydrogen atoms into helium, it turns into a red giant and moves on to convert the helium atoms into [...]
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06, 2017
What is nitrogen? Atoms, Elements, Chemistry
Diagram of a nitrogen atom Inside a red giant star, the star smashes lighter atoms together. Smashing atoms gets the star energy to burn, and also leaves extra heavier atoms. Nitrogen [...]
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06, 2017
What is iron? Atoms, elements, chemistry
Diagram of an iron atom When a red giant star finishes changing all of its helium into carbon and oxygen, it then starts to turn the carbon and oxygen atoms into iron atoms. Iron [...]
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06, 2017
What is gold? Chemical elements
Gold jewelry shaped like bees, from Bronze Age Greece Gold is a much heavier atom than iron, with 79 protons and 79 electrons in each atom. Gold is too heavy for [...]
