Select all the atoms whose ions have an electron configuration of nd6 (n = 3, 4, 5
for example, the 2+ ion for v ends the electron configuration with 3d 3.

a.) fe
b.) tl
c.) ti
d.) lu
e.) os
f.) rh


they are made of gases.

they have a spherical shape.

they make energy through fusion.

Inot sure what it is i sorry : ((
Electronic configuration of the following elements:

A) Fe - [Ar] 3d6 4s2
B) Tl - Xe 4f14 5d10 6s2 6p1
C) Ti - [Ar] 3d2 4s2
D) Lu - Xe 4f14 5d1 6s2
E) Os -  Xe 4f14 5d6 6s2
F) Rh -  Kr 4d8 5s1

Only A) Fe and E) Os have an electronic configuration of nd6.
A) Fe - 3d6
E) Os - 5d6

Do you know the answer?

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