Journey Into the Atom: Unveiling Subatomic Particles and Their Secrets

The video explores the concept of atoms, starting with their historical perception as indivisible particles. It delves into the discovery of subatomic particles like electrons, protons, and neutrons, comparing the atom's structure to a solar system. The video explains the limitations of Rutherford's model and introduces Bohr's model, which describes stable electron orbits. It concludes with a detailed explanation of electron configuration using Bohr-Berry's rules, illustrated with examples of carbon, chlorine, and calcium.

What does the word 'atom' mean in Greek?

• Incomprehensible

• Infinite

• Indivisible

• Invisible

Who discovered the electron?

• Niels Bohr

• J.J. Thomson

• James Chadwick

• Ernest Rutherford

What is the charge of a neutron?

• Neutral

• Negative

• Positive

• Variable

According to Rutherford's model, what is the space between the nucleus and electrons?

• Filled with air

• Filled with water

• Empty space

• Filled with dust

What did Bohr propose to explain the stability of atoms?

• Atoms are unstable

• Electrons are stationary

• Nucleus is not present

• Electrons revolve in fixed orbits

What are the fixed orbits in an atom called?

• Electron circles

• Electron rings

• Electron shells

• Electron paths

How many electrons can the first shell hold according to Bohr-Berry's rules?

• 6

• 4

• 8

• 2

What is the electron configuration of carbon?

• 2,2

• 2,8

• 2,4

• 2,6

How many electrons does chlorine have in its outermost shell?

• 8

• 7

• 6

• 5

What is the electron configuration of calcium?

• 2,8,2,8

• 2,8,8,2

• 2,8,2,2

• 2,8,8,8