Subatomic Particles and Atomic Structure

The video tutorial introduces subatomic particles, focusing on protons, electrons, and neutrons. It explains their charges, masses, and roles within the atomic structure. The Rutherford atomic model is discussed, highlighting the nucleus and energy levels. The video also covers experiments demonstrating the charges of electrons and protons, and concludes with a summary of the key points about subatomic particles.

What is the mnemonic used to remember the three main subatomic particles?

• PON

• PIN

• PAN

• PEN

According to Rutherford's atomic model, what is the central part of an atom called?

• Proton center

• Nucleus

• Neutron core

• Electron cloud

What percentage of space in an atom is empty according to Rutherford's model?

• 100%

• 50%

• 70%

• 90%

Which subatomic particle is positively charged?

• Electron

• Neutron

• Proton

• Photon

In the experiment with charged plates, which direction does an electron move?

• Towards the negative plate

• Towards the positive plate

• Stays in the middle

• Moves randomly

What is the charge of a neutron?

• Negative

• Positive

• Neutral

• Variable

What is the mass of a proton in atomic mass units (amu)?

• 2 amu

• 1 amu

• 0 amu

• 1/1800 amu

How does the mass of an electron compare to that of a proton?

• Twice as large

• Much smaller

• Much larger

• Equal

Which subatomic particle has a mass approximately equal to 0 amu?

• Electron

• Neutron

• Photon

• Proton

What are the three main subatomic particles discussed in the lecture?

• Proton, Electron, Photon

• Electron, Neutron, Photon

• Proton, Electron, Neutron

• Proton, Neutron, Photon