A) be highly unstable at room temperature
B) vaporize at room temperature
C) easily gain electrons
D) easily lose electrons
Correct Answer: D
Solution :
The alkali metals are a group in the periodic table consisting of Lithium, Sodium. Potassium, Rubidium, Caesium, and Francium. They have one electron in their outermost layer which they readily lose to form cations with charge +1. The alkali metals have the lowest first ionization energies (energy needed to remove an electron from an element) of all of the elements.
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