0
The cathode is negatively charged. A good way to remember this is thinking of what it's doing. A cathode attracts cations which are positively charged. In order to attract a positive charge, the charge on the electrode must be oppositely charged. So it has to carry a negative charge. The opposite is true for the anode. Since it attracts anions which are negatively charged, the electrode must carry a positive charge.
Add your answer:
Earn +20 pts
Are cathode rays deflected toward a negatively charged plate in an electric field?
Yes, cathode rays are deflected towards a positively charged plate in an electric field. The negatively charged particles in the cathode rays are attracted to the positive plate, causing the deflection.
What observation did Thomson make to suggest that an electron has a negative electric charge?
The deflection of cathodic rays was the source of inspiration for Thomson.
A cathode ray is deflected away from a negatively charged object What property of the cathode ray is shown by these phenomena?
The property of the cathode ray that is shown in this scenario is that it possesses a negative charge. The deflection away from the negatively charged object is consistent with the repulsion between like charges in an electric field.
Who identified electrons to have a negative charge?
J.J. Thomson is credited with identifying electrons to have a negative charge through his experiments with cathode rays in the late 19th century.
By measuring the deflection of cathode rays in electrical and magnetic fields J.J. Thomson was able to determine what?
J.J. Thomson was able to determine the charge-to-mass ratio of an electron by measuring the deflection of cathode rays in electrical and magnetic fields. This discovery led to the identification of electrons as fundamental particles in atoms.
What is the charge of the particle in cathode rays?
The charge of the particle in cathode rays is negative. This was determined by J.J. Thomson through his experiments with cathode ray tubes in the late 19th century, which led to the discovery of the electron.
Why do cathode rays move from the negative end of the tube to the positive end?
Because an electron carries a negative charge and in electricity, opposites attract. Particles with a negative charge will be drawn to the positive charge in the cathode tube.
How was the electric field used to determine the charge of the cathode ray?
The electric field was used to deflect the cathode rays in a cathode ray tube. By measuring the amount of deflection and knowing the strength of the electric field, the charge-to-mass ratio of the particles in the cathode rays could be calculated. This allowed for the determination of the charge of the particles in the cathode ray.
What electrode has a negative charge?
The cathode.
What is an electrode that has an netgative charge?
cathode
Is the amount of space charge created at the cathode is primarily controlled by the tube current?
The cathode space charge is determined by the voltage on the filament.
What is the charge of the cathode tube particles?
Cathode rays are high speed electrons. So they are negatively charged.
Who discovered anode and cathode rays?
Cathode rays were discovered by JJ Thomson and carry a negative charge Anode rays were discovered by Goldstein and carry a positive charge.
How was an electric field used to determine the charge of a cathode ray?
An electric field was used to determine the charge of a cathode ray by observing how the ray bent in the presence of the field. By measuring the amount of deflection and knowing the strength of the electric field, the charge-to-mass ratio of the particles in the cathode ray could be calculated, providing information about their charge.
Cathode rays all have same negative charge?
True
What is an electrobe that has a positive charge?
Assuming this is a misspelling of "electrode" ... Electrochemistry can be confusing, because the answer depends on the type of device! In a galvanic cell (or discharging battery), the positively charged electrode is the cathode. However, in an electrolytic cell (or recharging battery), the positively charged electrode is the anode. The easiest way to keep this straight is to remember that the cathode is the one the cations (positively charged ions) migrate towards, and the anode is the one the anions (negatively charged ions) migrate towards.
How did Thomson determine that cathode rays are negatively charged?
Thomson observed that cathode rays were deflected by electric and magnetic fields in a manner consistent with them having a negative charge. He measured the charge-to-mass ratio of cathode rays and found it to be the same regardless of the material used for the electrodes, which suggested the charge was a fundamental property of the particles themselves.
