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Where are protons located in the atom?

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Because the charge of electrons is opposite in sign than protons, the two types of particles attract each other, and this force, known as the Coulomb force, holds the atom together. Electrons travel around the nucleus in orbitals, but it is impossible to know both the speed and location of an electron at the same time. read more

Location of Protons Protons are positively charged particles within atoms. Each atom has at least one proton; in fact, the number of protons determines the identity of the atom. read more

The mass of an electron is 1.1 * 10^-31 kg. Electrons are grouped in distinct "shells" located outside the nucleus; each shell holds a limited number of electrons, and the number depends on the type of shell. The electron shells are relatively far from the nucleus, making the atom more than 99 percent empty space. read more

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