Members of which group of elements lose one electron to form cations with a +1 charge?

Answer 1

These elements are known as the alkali metals. They are found in the column on the extreme left of the table,

A crucial structural similarity among the alkali metals is that they all have a single valence electron, or an electron in the outermost shell.

These elements react readily with substances that are electrophilic ("looking for electrons") because this electron is quite weakly bound to the atom's nucleus and requires little energy to remove.

As stated in the question, a positive ion with a +1 charge is what is left over after the valence electron is removed.

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Answer 2

Olivia Anton

Alkali metals.

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Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.