📖 what
What is an atom?
Quick Answer
An atom is the basic building block of matter, made of a dense nucleus of protons and neutrons surrounded by electrons.
The Full Story
Everything around us is built from atoms, the smallest units of ordinary matter that retain the properties of a chemical element. Each atom has a tiny, dense nucleus of positively charged protons and neutral neutrons, orbited by a cloud of negatively charged electrons. The number of protons defines the element — one for hydrogen, six for carbon, and so on. Atoms are mostly empty space; if the nucleus were the size of a marble, the atom would be about the size of a stadium.
Key Facts
1.Atoms are made of protons, neutrons, and electrons
2.The number of protons defines the element
3.Atoms are mostly empty space
YouTube Angle
Suggested video title for this topic:
"What Is an Atom — The Building Block of Everything"
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