Podcast
Questions and Answers
What is the main idea of John Dalton's Atomic Theory?
What is the main idea of John Dalton's Atomic Theory?
- Atoms can be broken down into smaller particles
- Electrons are positively charged
- Atoms can be created or destroyed
- Matter is made of very small particles called atoms (correct)
What is the charge to mass ratio of an electron measured by?
What is the charge to mass ratio of an electron measured by?
- e/m: the mass to charge ratio of a proton
- m/e: the mass to charge ratio of a proton
- m/e: the mass to charge ratio of an atom
- e/m: the charge to mass ratio of an electron (correct)
What is the Plum Pudding Model proposing?
What is the Plum Pudding Model proposing?
- Atoms are negatively charged spheres with positive electrons embedded
- Atoms are neutrally charged spheres with no electrons embedded
- Atoms are positively charged spheres with positive electrons embedded
- Atoms are positively charged spheres with negative electrons embedded (correct)
What did Crooke observe when passing an electric current through a vacuum tube?
What did Crooke observe when passing an electric current through a vacuum tube?
What is the property of cathode rays when they hit glass?
What is the property of cathode rays when they hit glass?
Who suggested the name 'electrons'?
Who suggested the name 'electrons'?
What did J.J. Thomson discover when he passed cathode rays through a small hole in the anode?
What did J.J. Thomson discover when he passed cathode rays through a small hole in the anode?
What did Rutherford's gold foil experiment reveal about the structure of atoms?
What did Rutherford's gold foil experiment reveal about the structure of atoms?
What type of particles did Chadwick discover when he bombarded beryllium with alpha particles?
What type of particles did Chadwick discover when he bombarded beryllium with alpha particles?
What is the significance of the charge-to-mass ratio of an electron?
What is the significance of the charge-to-mass ratio of an electron?
According to John Dalton's Atomic Theory, what is true about atoms?
According to John Dalton's Atomic Theory, what is true about atoms?
What is the Plum Pudding Model of the atom?
What is the Plum Pudding Model of the atom?
