Punny Pinkie: Chemists

>Well, this was one hell of a way to start off the new year.
>Standing at the bedside, you look down at your now deceased father.
>For years, the man worked tirelessly to bring forth the best to humanity through chemistry.
>Sure, something things he developed were "unorthodox" and "unethical", but it was for science!
>Pinkie stands beside you, placing a hoof on your thigh for support.
>Turning to her, you let out a depressed sigh.
"It was only a matter of time. The man was always exposed to weird chemicals."
>Pinkie nods her head in agreement as you place a hand to his neck in hopes that he is still alive.
"At least he went peacefully. He always said he'd rather die in his sleep. We never asked if he wanted to be cremated or buried."
>The mare's hoof begins to shake violently on your leg.
>You turn to her, sadness quickly turning to anger.
>That smile; you know that smile.
"Don't you dar—"
>Before you can finish your statement, Pinkie blurts out:
>"Isn't it obvious, Anon? When chemists die, they barium!"