atomic number 82 vs Pb

atomic number 82 and Pb both are nouns.

Word	Noun	Adjective	Verb	Adverb
atomic number 82	Yes	No	No	No
Pb	Yes	No	No	No

As nouns, atomic number 82 and Pb are synonyms defined as:

atomic number 82 and Pb: a soft heavy toxic malleable metallic element; bluish white when freshly cut but tarnishes readily to dull grey

Other synonyms of atomic number 82 include lead.

atomic number 82 (noun)	Pb (noun)
a soft heavy toxic malleable metallic element; bluish white when freshly cut but tarnishes readily to dull grey	a unit of information equal to 1000 terabits or 10^15 bits
	a soft heavy toxic malleable metallic element; bluish white when freshly cut but tarnishes readily to dull grey