The Bohr Model Explained Through Flame Tests and Electron Configurations

The video explores the Bohr model, highlighting its improvements over the Rutherford model by introducing quantized shells. It explains electron states, the flame test, and atomic emission spectroscopy as evidence for the model. The video also covers electron configurations, the octet rule, and provides examples with elements like oxygen, sodium, and calcium.

What is a key improvement of the Bohr model over the Rutherford model?

• Introduction of quantized shells

• Nucleus composed of electrons

• Electrons losing energy continuously

• Electrons orbiting in random paths

In the Bohr model, what happens when an electron moves from a higher energy level to a lower one?

• It absorbs a photon

• It releases a photon

• It remains in the same state

• It gains energy

Which of the following colors is NOT associated with a metal ion in the flame test?

• Violet

• Scarlet

• Crimson

• Apple green

What does AES stand for in the context of analytical techniques?

• Atomic Electron Spectra

• Advanced Electron Study

• Atomic Energy System

• Atomic Emission Spectroscopy

What is the maximum number of electrons that the second shell can hold?

• 32

• 18

• 2

• 8

According to the octet rule, how many valence electrons do elements aim to have?

• 8

• 2

• 4

• 6

Which group of elements is known for having a full outer shell and being inert?

• Alkali metals

• Noble gases

• Halogens

• Transition metals

How many electrons does the first shell hold in the electron configuration of oxygen?

• 1

• 2

• 3

• 4

For sodium, how many electrons are in the third shell according to its electron configuration?

• 11

• 8

• 2

• 1

In the electron configuration of calcium, how many electrons are in the fourth shell?

• 0

• 1

• 2

• 4