QuestionDecember 28, 2025

19. What did JJ Thomson add to the model of the atom? a. The Electron Levels b. The Electron Cloud c. The Nucleus d. The Electron

19. What did JJ Thomson add to the model of the atom? a. The Electron Levels b. The Electron Cloud c. The Nucleus d. The Electron
19. What did JJ Thomson add to the model of the atom?
a. The Electron Levels
b. The Electron Cloud
c. The Nucleus
d. The Electron

Solution
4.2(299 votes)

Answer

d. The Electron Explanation 1. Identify JJ Thomson’s contribution JJ Thomson discovered the electron in 1897 through cathode ray tube experiments, introducing it into atomic theory as a subatomic particle. 2. Determine what he added to the atomic model He proposed that atoms contain negatively charged electrons embedded in a positively charged “pudding,” known as the “plum pudding model.”

Explanation

1. Identify JJ Thomson’s contribution<br /> JJ Thomson discovered the electron in 1897 through cathode ray tube experiments, introducing it into atomic theory as a subatomic particle. <br /><br />2. Determine what he added to the atomic model<br /> He proposed that atoms contain negatively charged electrons embedded in a positively charged “pudding,” known as the “plum pudding model.”
Click to rate:

Similar Questions