Q:

What is smaller than an atom?

A:

Atoms are made up of even smaller particles, such as protons and neutrons, which are formed from even smaller particles known as quarks. Subatomic particles form atoms, which in turn create molecules, the basic building blocks of matter.

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Just as atoms can be combined to create different types of matter, subatomic particles are used to create different types of atoms. Protons and neutrons make up the nucleus of atoms, and it is the different combinations and configurations of these subatomic particles that are responsible for providing different types of atoms with various properties. Protons, neutrons and heavier particles, known as hadrons, are created from even smaller subatomic particles, known as quarks.

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    A:

    The Danish physicist Niels Bohr developed a model of the atom that combined Ernest Rutherford's discovery of the nucleus with the quantum ideas proposed by Max Planck. This solved the problem of why the electrons did not immediately collapse into the nucleus. Bohr received the Nobel Prize in Physics for his discovery in 1922.

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    A:

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    A:

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