Examlex
Which of the following statements is false?
Calcium
A metallic chemical element essential for living organisms, particularly in cell physiology and bone formation.
Chlorine
Chlorine is a chemical element with symbol Cl and atomic number 17, known for its powerful disinfectant properties and use in water purification.
Lewis Dot Structure
A diagram that represents the valence electrons of an atom as dots around the elements' symbols and indicates the bonding between atoms in a molecule.
Electrons
Negatively charged particles located within every atom that are essential for chemical reactions and the production of electricity.
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