Examlex
Which word is an example of a Greek singular noun?
Lewis Dot Structure
A graphical representation of the valence electrons of atoms, indicating how the electrons are shared or paired between atoms in a molecule.
Ca
Calcium, a chemical element with the symbol Ca and atomic number 20, an alkaline earth metal essential for living organisms, particularly in cell physiology.
Lewis Dot Structure
A diagrammatic representation of the valence electrons in an atom, ion or molecule, using dots around the symbol of an element.
Potassium
A soft, silvery-white metallic element, highly reactive and essential for biological organisms, symbolized as K.
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