QUESTION IMAGE
Question
select the correct answer from each drop - down menu. much of the mass of an atom is concentrated in its nucleus. the nucleus contains , and the outer part of the atom contains (the second part of the question about the outer part is not fully visible, and the drop - down options for the nucleus part are: neutrons and electrons, protons and electrons, protons and neutrons)
Para determinar qué contiene el núcleo de un átomo, recordamos que el núcleo está compuesto por protones (que tienen carga positiva) y neutrones (que no tienen carga). Los electrones, por otro lado, se encuentran en la nube electrónica alrededor del núcleo. Entonces, entre las opciones dadas, la correcta es "protons and neutrons".
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protons and neutrons