Smallest unit of matter that is indivisible.
The number of protons in the nucleus of an atom
The tiniest particle of a chemical element is called an atom.
a nucleus in an electron cloud.
Neutral.
The planetary model of an atom is simple. The nucleus is the planet and the electrons are the moons in the model.
the atom as a tiny, dense, positively charged core called a nucleus
An atom is a smallest particle of an element. The subatomic particles are electrons, protons and neutrons
The atomic number is equal to the number of protons in the nucleus of an atom.
Today the accepted atomic model is quantic.
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Sodium chloride is formed.
No, a drawing of an atom is not a scientific definition. A scientific definition of an atom would describe it as the smallest unit of matter that retains the properties of an element.