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Four elements-chlorine (Cl), potassium (K), argon (Ar), and radium (Ra) according to the periodic table which of these elements has atoms with the most valence electrons? A.Potassium B.Chlorine C.Radium
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Four elements-chlorine (Cl), potassium (K), argon (Ar), and radium (Ra) according to the periodic table which of these elements has atoms with the most valence electrons?

A.Potassium

B.Chlorine

C.Radium

D.Argon

User Amitkumar Jha
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Answer: Argon (Ar) has the most valence electrons.

Explanation: Remember, valence electrons are the electrons in the outer most shell in the electron orbits. Argon has 8 on total. While potassium (K) has 1, chlorine (Cl) has 7, and radium (Ra) has 2.
User AlexGeorg
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