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A nucleus made of protons and neutrons surrounded by a cloud of electrons equal in number to the protons.

2 votes
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Covalent bonding vs Ionic bonding

If you form a bond between two elements whose electronegativities are relatively similar you will generally obtain covalent bonds, where the electron density is mostly shared between the two atoms. …
Charlie's user avatar
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11 votes

How can we see objects with the help of light if we cannot see atoms?

The situation is similar with atoms. … Your eyes do detect individual photons coming from atoms, however just like looking at a single pixel, seeing a single photon from a single atom would not even register on your vision. …
Charlie's user avatar
  • 7,008