Question

which of the following scientists is credited with measuring the elementary electronic charge of a single electron using charged oil drops. werner heisenberg robert millikan j. j. thompson john dalton louis de broglie question 2 1 pts which of the following discoveries is robert millikan, an american experimental physicist, credited for determining? he made groundbreaking contributions to quantum theory by suggesting that all matter has both wave and particle properties. the discovery of the electron, a subatomic negatively charged particle, and its mass - to - charge ratio. using charged oil drops, he was able to measure the elementary electronic charge of a single electron. he discovered the concept of the nucleus in an atom using alpha particles passing through a piece of gold foil. he stated that if the position of a particle is determined, then the less precisely its momentum can be known, and vice versa, which is termed the uncertainty principle.

Explanation:

Robert Millikan used the oil - drop experiment to measure the elementary electronic charge of a single electron. Heisenberg is known for the uncertainty principle, J.J. Thompson discovered the electron, John Dalton is associated with atomic theory, and Louis de Broglie proposed wave - particle duality. For the second question, the key discovery of Millikan is the measurement of the elementary charge using oil drops.

Answer:

Question 1: Robert Millikan
Question 2: Using charged oil drops, he was able to measure the elementary electronic charge of a single electron.