No, boron is a naturally occurring element that is found in the Earth's crust. It is not synthetic.
Yttrium is a natural element found in the Earth's crust. It is not a synthetic element.
No, Bromine is not a synthetic element, it occurs naturally
Yes
Lithium is a natural element that is found in various minerals and salts in the Earth's crust. It is not a synthetic element.
Yes, xenon is a naturally occurring element found in trace amounts in the Earth's atmosphere. It is not a synthetic element.
it is synthetic
No.
no
No, barium is a naturally occurring chemical element found in minerals such as barite and witherite. It is not a synthetic element.
Boron is a naturally occurring element found in the Earth's crust. It is not a synthetic material.
Aluminium is a natural chemical element.