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Ellos están pensando en una solución.
(A) would be the correct answer im fluent in spanish so i hope i could help in any form or way , goodluck by the way ;D
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Estaba buscando , se quitaron, hicimos
Answer:
The existence of isotopes contradicts part of Dalton's original atomic theory because he said all atoms of a given element are identical have the same mass size and chemical properties.
Explanation:
1. a) Yo nunca he hablado de eso.
2. d) Ella lo he conocido por un ano.
A because that’s what it is
