An Energy of 13

question 49

Multiple Choice

An energy of 13.6 eV is needed to ionise an electron from the ground state of a hydrogen atom.Selecting the longest wavelength that will work from those given below, what wavelength is needed if a photon accomplishes this task?

• A)60 nm
• B)80 nm
• C)70 nm
• D)90 nm
• E)40 nm

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Definitions:

Fossil Record

The collection of all known fossils and their placement in rock formations and sedimentary layers, providing evidence of past life on Earth.

Biological Life Forms

Various types and structures of living organisms existing on Earth, ranging from single-celled bacteria to complex multicellular entities like humans.

Aquatic Organisms

Life forms, including plants and animals, that live in water environments, from oceans to rivers and lakes.

Macroevolution

Large-scale evolutionary changes that occur over geological time, leading to the emergence of new species and the extinction of others.