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3. Which of the following is a characteristic of valence electrons?

A. For main group III elements, the valence electrons exist in the s-subshell.
B. A valence electron can either absorb or release energy in the form of a photon.
C. Noble gases consist of two valence electrons in their outermost electron shell.
D. An atom consisting of an even number of valence electrons is usually chemically inert.

Sagot :

GinnyAnswer

Final answer:

Valence electrons are crucial in determining an atom's chemical behavior, with noble gases exemplifying stability due to filled valence shells.


Explanation:

Valence electrons are the outer-shell electrons of an atom that can participate in chemical bonding, influencing the element's reactivity and bonding interactions with other atoms. The number of valence electrons determines an atom's chemical properties; atoms with 4-7 valence electrons tend to gain or share electrons, while atoms with 1-3 valence electrons tend to donate electrons to achieve a full outer shell. Noble gases are elements with filled valence shells, making them stable and unreactive.


Learn more about Valence electrons here:

https://brainly.com/question/43580798


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