AnswersGA-GSE Physical Science AAtomic Theory

Atomic Theory Answers

6 verified answers
1
Free Preview

Question text not available

Answer not available
2
Free Preview

Question text not available

Answer not available
3

Based on the article “Will the real atomic model please stand up?,” why did J.J. Thomson experiment with cathode ray tubes?

A
to specifically identify the nucleus as a separate part of an atom
B
to determine that electric beams in cathode ray tubes were actually made of particles
C
to prove John Dalton and Democritus wrong
D
to determine the exact energy output of cathode ray tubes
4

What did J.J. Thomson’s experiments with cathode ray tubes imply about the mass of an electron?

A
Electrons are many thousand times larger than the nucleus and negatively charged.
B
Electrons are many thousand times smaller than the nucleus and positively charged.
C
Electrons are many thousand times smaller than the nucleus and negatively charged.
D
Electrons are many thousand times larger than the nucleus and possess no charge.
5

What did Ernest Rutherford expect to happen when he aimed a beam of particles at a thin gold foil?

A
The particles would deflect at sharp angles or completely back toward the emitter.
B
The particles would pass through the foil undisturbed.
C
The particles would deflect at right angles after hitting the foil.
D
The particles would be deflected slightly after passing through the foil.
6

Bohr’s atomic model differed from Rutherford's because it explained that

A
electrons exist in specified energy levels surrounding the nucleus.
B
electrons are embedded within the rest of the atom like plum pudding.
C
an atom is an indivisible sphere.
D
electrons circle the nucleus.

Did you find these answers helpful?

More from this Course

Assignment
14 verified answers

Elements

Assignment
13 verified answers

Assignment

Assignment
12 verified answers

Atoms