1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
MatroZZZ [7]
4 years ago
12

How did Thomson discover the electron?

Chemistry
1 answer:
Hoochie [10]4 years ago
4 0

J. J. Thomson discovered electron by performing an experiment using cathode ray tubes. High voltage across is applied across two electrodes at that  causes a beam of particles to flow from the the negatively-charged electrode that is  cathode to  the positively-charged electrode that is anode. Properties of the particles, are tested using two oppositely-charged electric plates around the cathode ray. The cathode ray was deflected away from the negatively-charged electric plate and towards the positively-charged plate. This indicated that the cathode ray was composed of negatively-charged particles. And these negatively charged particles are called electrons.


You might be interested in
Which statements indicate what the fossil record suggests about evolution on Earth? Check all that apply.
Gennadij [26K]

The following are the statements, which indicates that the fossil record suggests about evolution on Earth:  

1. Humans have only recently existed on Earth.  

2. The organisms originally lived only in Earth's water.  

3. The plants did not have flowers when dinosaurs existed.  

The fossil remains have been discovered in the rocks of all the ages. The simplest organisms fossils are witnessed in the oldest rocks, and the fossils of more composite species are found in the newest rocks. This supports the theory of evolution suggested by Darwin, according to which the simple life forms slowly gets evolved into more composite ones.  

6 0
3 years ago
Read 2 more answers
Determine whether the bonds in CCl4 and N2 are polar or non-polar. If the bond is polar, assign the partial positive and negativ
stira [4]

Refer to the attachment

7 0
3 years ago
What would be the formula of the precipitate that forms when pb(no3)2 (aq) and k2so4 (aq) are mixed?
maria [59]
The formula of the ppt. formed is PbSo4 , which is inslouble.
6 0
3 years ago
What is the molecular geometry of PBr3? A. trigonal pyramidal B. trigonal planar C. linear D....
lubasha [3.4K]
The correct answer is:

TRIGONAL PYRAMIDAL
4 0
3 years ago
Which term names the transfer of heat between two objects that are touching​
Svetlanka [38]

Answer: Conduction

Explanation:

Conduction means the process by which heat or electricity is directly transmitted through a substance when there is a difference of temperature or of electrical potential between adjoining regions, without movement of the material.

Meaning that its when an object touches another object and heat gets transferred.

5 0
3 years ago
Other questions:
  • Question 25 An aqueous solution at has a concentration of . Calculate the concentration. Be sure your answer has the correct num
    9·1 answer
  • Please help me!!!!!!!!
    5·1 answer
  • -Before we begin each flame test we will
    11·1 answer
  • It takes 945. kJ/mol to break a nitrogen-nitrogen triple bond. Calculate the maximum wavelength of light for which a nitrogen-ni
    5·1 answer
  • It was field day at school. The sun was bright and the temperature high. Most of the students wore light colored T-shirts to sta
    7·2 answers
  • What is a cylinder? Give an example of an<br> object that's a cylinder.
    7·2 answers
  • What is the enthalpy for 2H2S(g) + 3O2(g) -&gt; 2H2O(I) + 2SO2(g). (∆H)​
    8·1 answer
  • PLEASE HELP ASAP
    7·1 answer
  • How many millimeters are in 4.69 miles? Show work!
    15·2 answers
  • Use Appendix C to choose the solution with the lower pH:0.1MBeCl₂ or 0.1MCaCl₂
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!