Which of the following atoms or ions does not have a filled d subshell (d10)? Group of answer choices

Ni-
In+

Ag

Pd

Ni⁻

Explanation:

To check which atom or ion does not have filled d orbital we will write the electronic configuration of given atoms and ions.

Ni⁻₂₈ = 1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d⁹

One more electron is added into the 3d but still d is not filled.

In⁺₄₉ = [Kr]4d¹⁰ 5s² 5p⁰

One electron lose from 5p and form cation. In⁺ have filled d subshell.

Ag₄₇ = [Kr] 4d¹⁰ 5s¹

Ag have filled d subshell.

Pd₄₆ = [Kr] 4d¹⁰

Palladium also have filled d orbital.

answer: c. the experiment shows that the red substance experienced a chemical change.

explanation: chemical change is the change in which chemical composition of the substance changes. physical change is the change in which there is no change in chemical composition.

chemical changes are accompanied by following changes:

a) precipitate formation

b) energy is released or absorbed

c) formation of bubbles

d) change in color

as it is given that the red color has disappeared and there is production of gas, it means the red substance has undergone a chemical change.

e