Natural....it is a lanthanide and is a rare metal. This element can be found in minerals.
Yttrium is a natural element found in the Earth's crust. It is not a synthetic element.
Thulium has 79 shells.
The symbol for tantalum is Ta.
True. Compounds and mixtures can be either synthetic or natural. Synthetic compounds are created by humans in a laboratory while natural compounds are found in nature. Similarly, mixtures can also be either synthetic or natural based on their origin.
Ampicillin is a semi-synthetic antibiotic, meaning that it is derived from a natural source (penicillin) but has been chemically modified to enhance its effectiveness.
It is synthetic, but what we use to make concrete is natural AND synthetic.
is bromine natural or synthetic?
Polyester is synthetic.
it is synthetic
they are synthetic.
Yttrium is a natural element found in the Earth's crust. It is not a synthetic element.
its natural
natural
Thulium has 79 shells.
The symbol for tantalum is Ta.
Thulium belongs to the Lanthanide family. Thulium is a silvery metal, so soft it can be cut with a knife. Thulium is stable in air, but reacts slowly with water, and rapidly with acids.
natural