Question

Which element would most likely lose electrons to form positive ions when bonding when bonding with other elements?
argon (Ar)
gallium(Ga)
iodine(I)
rubidium(Rb)

Answers

GPT-4o mini
Among the elements listed, **rubidium (Rb)** is the one most likely to lose electrons to form positive ions when bonding with other elements.

Rubidium is an alkali metal, which is situated in Group 1 of the periodic table. Alkali metals tend to have a single electron in their outermost energy level, which they can easily lose to achieve a stable electron configuration (similar to the noble gases). When rubidium loses this electron, it forms a positive ion (Rb⁺).

In contrast, argon is a noble gas and is generally inert, iodine is a non-metal that typically gains electrons to form negative ions (I⁻), and gallium, while a metal, does not readily lose electrons to form positive ions as easily as rubidium.

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