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10-10-2020
Chemistry

contestada

Which element has the electron configuration,

1s2 2s2 2p6 3s2 3p3 4s2 3d10 4p6 5s2 4d5 ?

a
manganese
b
technetium
c
rhenium
d
europium

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doctorseed doctorseed

10-10-2020

Answer:

B. technetium

Explanation:

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