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2 06, 2017

What is silicon? Atoms, elements, chemistry

By |2018-04-24T14:46:23-07:00June 2nd, 2017|Chemistry|0 Comments

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 atoms. All silicon is made this way, inside a red giant star. Silicon is heavier than oxygen, because oxygen has only eight protons [...]

2 06, 2017

What is oxygen? Atoms, elements, chemistry

By |2018-04-24T14:46:22-07:00June 2nd, 2017|Chemistry|0 Comments

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 carbon atoms and oxygen atoms. All of the oxygen in the universe starts out inside stars. Then when all the helium is used up, [...]

2 06, 2017

What is mercury? Atoms, elements, chemistry

By |2017-06-02T10:00:50-07:00June 2nd, 2017|Chemistry|0 Comments

Diagram of a mercury atom. Thanks to Open Door for this image Along with gold, lead, and uranium, mercury is one of the heavier kinds of atoms. Every atom of mercury has 80 protons and 121 neutrons in its nucleus. Like those atoms, all mercury atoms are made inside older stars that have [...]

2 06, 2017

What is lead? Atoms, elements, chemistry

By |2018-04-24T14:44:10-07:00June 2nd, 2017|Chemistry|0 Comments

A lump of lead As with all of the other heavier elements, all of the lead in the universe came originally from inside stars. Lead is the heaviest atom that is still stable, with 82 protons and 125 neutrons, just a little heavier than mercury. Unlike many other metals, lead does not conduct electricity [...]

2 06, 2017

What are atoms? Simple science – Chemistry

By |2019-02-05T06:02:22-07:00June 2nd, 2017|Chemistry, Physics|0 Comments

Lithium, cobalt, and oxygen atoms (as in a lithium-ion battery), seen under an electron microscope from Berkeley Labs What is an atom? Atoms are collections of tiny bits of matter, particles which we call protons, neutrons, and electrons. More about electrons All our physics articles What are those made of? These particles are [...]