<h2>Answer: protons and neutrons.
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The atomic nuclei of almost all elements consist of protons and neutrons.
The nucleus of an atom has very small dimensions. However, it <u>occupies its central part and concentrates more than 99% of its total mass.
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It is in the nucleus that the protons (positive charge) and neutrons (neutral charge) are found.
Parallel has more than one circuit or form of energy
series has only one form of energy circuit
The river that flows through Rome is the Tiber.
F=m*a
F=65 kg *9.8 m/s^2
F=637 N (Newtons) — this is the weight
