Why each element gives off its own colors
Grade 10 Science Worksheet - Building Confidence
Circle the best answer, or write your answer on the line.
An electron drops from a level at -3.4 eV to one at -13.6 eV. What energy does the photon carry, to 0.01 eV, Bo?
An electron drops from a level at -0.85 eV to one at -1.51 eV. What energy does the photon carry, to 0.01 eV, Esme?
On the ladder, which drop gives the red photon, Jun?
- n = 3 to n = 2
- n = 4 to n = 3
- n = 2 to n = 1
On the ladder, how many lines does one drop make in the strip, Luz?
Use the picture in question 3.
- One
- A full rainbow
- Two
Why does glowing hydrogen give off only certain colors, Milo?
- Its electrons have set levels
- It gives off each color of light
- Its glass tube is tinted
What does light from a glowing gas look like through a prism, Noah?
- Pure white light
- A smooth rainbow of colors
- A few bright lines
Why does each element give its own set of lines, Pia?
- Each one burns at its own speed
- Each has a different color of electron
- Each has its own energy levels
A described result: a sodium lamp glows yellow-orange. Which lines cause that, Ren?
- Lines spread across each color
- Sodium's lines near 589 nm
- Lines near 410 nm
A neon sign glows red-orange. What causes the color, Tala?
- Neon's own energy levels
- Red paint on the glass tube
- The heat of the wires
In a described flame test, what does the color of the flame tell you, Zee?
- How much the sample weighs
- Which element is present
- How hot the room is