Respuesta :

Answer:

[tex]1s^2,2s^2,2p^6,3s^2,3p^6,4s^2,3d^5[/tex]

Explanation:

Hello!

In this case, since electron configurations allows to understand how the electrons in an atoms are arranged depending on the energy levels from 1 to 7 and subshells s, p d and f, considering the attached picture, if we want an element for which the last term in its electrons configuration was 3d⁵, we write:

[tex]1s^2,2s^2,2p^6,3s^2,3p^6,4s^2,3d^5[/tex]

It means that the element has 25 electrons, therefore, it should be manganese.

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Ver imagen sebassandin

Answer: it's A the same answer as the dude above me not trying to type all that

Explanation: took the test for ap