Definitions
There is 1 meaning of the phrase
Atomic Number 1.
Atomic Number 1 - as a noun
Example Sentences
"Hydrogen, with atomic number 1, is the lightest element in the periodic table."
"An atomic number 1 element typically has one proton and one electron."
"A compound with atomic number 1 elements can have unique chemical properties."
"Scientists study atomic number 1 isotopes to unlock the mysteries of the universe."
"Hydrogen ions, with atomic number 1, play a crucial role in acid-base chemistry."