Definitions
There is 1 meaning of the phrase
Atomic Number 20.
Atomic Number 20 - as a noun
A white metallic element that burns with a brilliant light; the fifth most abundant element in the earth's crust; an important component of most plants and animals
Synonyms (Exact Relations)
cacalcium13Hypernyms (Closely Related)
metal7metallic elementHyponyms (Broadly Related)
Example Sentences
"The atomic number 20 indicates the number of protons in a calcium atom."
"In the periodic table, atomic number 20 is assigned to the element calcium."
"Atoms of elements with the atomic number 20 have 20 protons."
"Calcium's atomic number 20 makes it a necessary nutrient for humans."
"The atomic number 20 is used to identify calcium in chemical reactions."
Word Variations & Relations
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Phrases
atomic number 102
