spectroscopy

Which element has the electron configuration 1s²2s²2p⁶3s²3p⁵?

• chlorine

• fluorine

• sulfur

• phosphorus

How many valence electrons in the electron configuration 1s²2s²2p⁶3s²3p⁵?

• 3

• 7

• 5

• 2

Emission of light from an atom occurs when an electron

• drops from a higher to a lower energy level.
•    jumps from a lower to a higher energy level.   
•    moves within its atomic orbital.
• falls into the nucleus.

Gama Rays travel faster than visible light.state True or False.

• True

• False

Monochromatic light means light of a single ____________

• Intensity

• Wavelength

• Velocity

• Frequency

The Velocity of electromagnetic radiation is

• None of the above

______________ is the energy that can travel through space in the form of waves. 

• telescopes
• electromagnetic spectrum
• observatory

Which of the following type of electromagnetic radiation has the most energy

• infrared
• ultraviolet
• microwaves
• radiowaves

Put the visible light colors in order from longest wavelength to shortest wavelength

• Violet, Indigo, Blue, Green, Orange, Yellow, Red
• Red, Yellow, Green, Orange, Violet, Blue, Indigo
• Red, Orange, Yellow, Green, Blue, Indigo, Violet

What is the light that you can see called?

• observatory
• wavelength
• visible light