Hydrogen's Spectrum: Decoding the Lines

Hydrogen's Spectrum: Decoding the Lines

Assessment

Interactive Video

Chemistry, Science, Physics

10th Grade - University

Hard

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Quizizz Content

FREE Resource

The video tutorial explains the hydrogen spectrum, detailing how hydrogen atoms emit light when excited. It covers the dispersion of light through a prism, resulting in spectral lines across visible, ultraviolet, and infrared regions. The tutorial introduces the Lyman, Balmer, Paschen, Brackett, and Pfund series, each corresponding to different regions of the spectrum. It also discusses the Balmer and Rydberg equations for calculating wavelengths of spectral lines, emphasizing the unique fingerprint of hydrogen's atomic spectrum.

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5 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What happens to hydrogen molecules when high voltage is applied?

They remain unchanged.

They become stable and emit sound.

They absorb energy and split into excited atoms.

They release energy and form new compounds.

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which colors are part of the visible spectral lines of hydrogen?

Yellow, orange, and red

Red, yellow, and green

Violet, blue-green, and orange

Blue, indigo, and violet

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which series of hydrogen spectral lines lies in the ultraviolet region?

Lyman series

Paschen series

Pfund series

Balmer series

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the significance of the integer 'n' in Balmer's equation?

It is a constant value for all elements.

It is an integer greater than two.

It represents the speed of light.

It denotes the energy level of electrons.

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What does Rydberg's equation calculate?

The speed of light in a vacuum

The wavelengths of all hydrogen spectral lines

The mass of hydrogen atoms

The energy levels of helium atoms