When J J Thomson Discovered the Electron, What Physical Property of the of the Electron

question 86

Multiple Choice

When J. J. Thomson discovered the electron, what physical property of the electron did he measure

• A) its charge, e
• B) its charge-to-mass ratio, e/m
• C) its temperature, T
• D) its mass, m
• E) its atomic number, Z

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Definitions:

K-Pg Boundary

The geological signature marking the end of the Cretaceous period and the beginning of the Paleogene, associated with the mass extinction event that killed the dinosaurs.

Meteorite Impact

A phenomenon where a meteoroid enters Earth's atmosphere and collides with the Earth's surface, potentially causing significant ecological and geological changes.

Embryonic Development

The process by which an embryo forms and develops, starting from a single fertilized cell through to a multi-cellular organism, involving cell division, differentiation, and morphogenesis.

Conservation of Genes

The principle that certain genes are preserved and remain unchanged throughout the evolution of species.