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"The Bohr model is a simple model of atomic structure. It is now outdated, but is still useful at the basic level. An atom has a central core called its nucleus which contains its protons (positively ...
Miles de vídeos breves a modo de píldoras de formación de Matemáticas (álgebra, geometría, trigonometría, cálculo,..) y Ciencias ( Biologí ...
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