The Element with the Ground State Electron Configuration of 1s²

question 181

Multiple Choice

The element with the ground state electron configuration of 1s² 2s² 2p⁶ 3s² is

• A) Mg.
• B) Ca.
• C) Mn.
• D) Ne.

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Definitions:

Mary Anning

A pioneering 19th-century British paleontologist who made important contributions to the field through her discoveries of Jurassic marine fossil beds along the English Channel at Lyme Regis.

Paleontology

The scientific study of life that existed prior to, and sometimes including, the start of the Holocene Epoch (approximately 11,700 years ago). It involves the examination of fossils to understand the processes of evolution and the history of life on Earth.

Marine Animals

Organisms that inhabit the saltwater environments of oceans and seas.

Nicolaus Steno

A pioneering geologist and bishop in the 17th century, known for laying the foundational principles of stratigraphy, the study of rock layers and layering.