Choose the Element with the Smallest Ionization Energy

question 37

Multiple Choice

Choose the element with the smallest ionization energy.

• A) P
• B) N
• C) As
• D) Pb
• E) Sb

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Definitions:

End-Cretaceous Extinction

A significant global extinction event approximately 66 million years ago, marking the end of the Cretaceous Period, characterized by the mass extinction of dinosaurs among other species.

Asteroid Impact

A phenomenon where an asteroid collides with another celestial body, such as Earth, potentially causing significant geological and biological effects.

Carbonate Rock

Sedimentary rocks, such as limestone, that are composed primarily of carbonate minerals.

Microscopic Organisms

Tiny life forms, often unicellular, that are not visible to the naked eye and require a microscope to be observed.