Definitions
There is 1 meaning of the phrase
Atomic Number 11.
Atomic Number 11 - as a noun
Example Sentences
"The atomic number 11 corresponds to the element sodium."
"The atomic number 11 indicates the number of protons in a sodium atom."
"Na is the chemical symbol for the element with atomic number 11."
"The atomic number 11 is also known as the sodium number."
"The atomic number 11 is used to identify sodium in chemical equations."