In vs atomic number 49

In and atomic number 49 both are nouns.

Word	Noun	Adjective	Verb	Adverb
In	Yes	No	No	No
atomic number 49	Yes	No	No	No

As nouns, In and atomic number 49 are synonyms defined as:

In and atomic number 49: a rare soft silvery metallic element; occurs in small quantities in sphalerite

Other synonyms of In include indium.

In (noun)	atomic number 49 (noun)
a rare soft silvery metallic element; occurs in small quantities in sphalerite	a rare soft silvery metallic element; occurs in small quantities in sphalerite