[kimtom]

“...I’m asking for the “young earth” explanation of how the elements were created...”

Be specific.

God created Heavens and the Earth. That encompasses the
known elements (building blocks)

If you are hinting at apparent age(?) that is different.

[MrB]

You answered. Specifically.

The answer is “ex nihilo”.

The elements were created from nothing through the spoken Word of God.

That’s the answer.