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The Atomic Hypothesis and J

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Questions and Answers

According to J.J. Thomson's model of the atom, the positive charge of the atom is distributed

only on the surface of the atom

only in the nucleus of the atom

in a specific pattern inside the atom

uniformly throughout the volume of the atom (correct)

According to J.J. Thomson's model, the negatively charged electrons are embedded in the atom like

birds in a nest

sand in an hourglass

pebbles in a pond

seeds in a watermelon (correct)

What did J.J. Thomson's experiments on electric discharge through gases reveal about atoms?

Atoms contain positively charged constituents

Atoms have a specific structure inside

Atoms are electrically neutral

Atoms contain negatively charged constituents (correct)

Why must an atom contain some positive charge?

To neutralize the negative charge of the electrons Signup and view all the answers

What is the term used to describe the first model of the atom proposed by J.J. Thomson?

The Thomson model Signup and view all the answers

What experiments did J.J. Thomson carry out in 1897?

Experiments on electric discharge through gases. Signup and view all the answers

What did J.J. Thomson's experiments reveal about atoms?

Atoms of different elements contain negatively charged constituents (electrons) that are identical for all atoms. Signup and view all the answers

What was the first model of the atom proposed by J.J. Thomson?

The positive charge of the atom is uniformly distributed throughout the volume of the atom and the negatively charged electrons are embedded in it like seeds in a watermelon. Signup and view all the answers

When was J.J. Thomson born?

1856 Signup and view all the answers

What is the term used to describe J.J. Thomson's model of the atom?

Plum pudding model. Signup and view all the answers