Electrons Basics

Select the correct order of light from low to high energy

• Radio, Micro, Infrared, Visible, Ultra, X-ray, Gamma

• Gamma, X-ray, Ultra, Vis, Infrared, Micro, Radio

• Vis, Micro, Infrared, Ultra, X-ray, Gamma, Radio

• Micro, Radio, Vis, Infrared, Ultra, X-ray, Gamma

Which of the following electromagnetic radiation has the lowest frequency?

• gamma ray

• infrared wave

• visible light wave

• microwave

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

Which of the following has the highest energy

• red light

• orange light

• green light

• violet light

What is the location of the electron?

• In orbits/energy levels around the nucleus of an atom.

• in the nucleus of the atom with the protons and neutrons.

• Electrons can be located in both the nucleus and orbits around it.

How many electrons does an oxygen atom have?

• 8

• 16

• 15.99

• 24

Which of the following elements has 18 electrons?

• Flourine

• Helium

• Argon

• Chlorine

An neutral sodium atom has 11 protons, how many electrons does it contain?

• 11 electrons

• 23 electrons

• 10 electrons

• 22 electrons

When an atom has all of its electrons in the lowest energy orbitals available, the atom is

• in ground state

• in excited state

• giving off light energy

• unstable

Which of the following elements has 9 electrons?

• Flourine

• Lithium

• Boron

• Chlorine