<span>The rare earth elements include the lanthanide series, scandium and yttrium. They are a set of seventeen chemical elements in the periodic table. They really are not that rare but they occur together in nature and are hard to separate from one another.</span>
Answer:
Physical Properties
Explanation:
You are able to see physical properties but are unable to see chemical properties.
D i think if not here’s this a collection of beliefs or practices mistakenly regarded as being based on scientific method
Answer:
The study of properties for all things living and non-living