Which Radioactive Particle Was Used by Geiger and Marsden in Their

question 166

Multiple Choice

Which radioactive particle was used by Geiger and Marsden in their experiments with thin metal foils?

• A)alpha, α
• B)beta, β
• C)gamma, γ
• D)lambda, λ

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Definitions:

Fetal Circulatory System

The circulatory system of a fetus that involves unique structures like the umbilical cord, placenta, and ductus arteriosus for nutrient and waste exchange and for bypassing the lungs.

Trimester

One of the three approximately three-month periods into which a pregnancy is divided.

Morning Sickness

The nauseous feeling a woman may have during her first trimester of pregnancy; the result of increased hormones in the body.

Fetus

A developing human from roughly eight weeks after conception to the moment of birth.