10th grade Why each element gives off its own colors worksheet

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.

1. 1.

   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?
2. 2.

   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?
4. 3.

   On the ladder, which level has the lowest energy, Kira?

   • n = 4
   • n = 1
   • n = 3
5. 4.

   On the ladder, how many lines does one drop make in the strip, Luz?

   Use the picture in question 3.

   • A full rainbow
   • Two
   • One
6. 5.

   Why does glowing hydrogen give off only certain colors, Milo?

   • Its glass tube is tinted
   • It gives off each color of light
   • Its electrons have set levels
7. 6.

   What does light from a glowing gas look like through a prism, Noah?

   • A few bright lines
   • A smooth rainbow of colors
   • Pure white light
8. 7.

   Why does each element give its own set of lines, Pia?

   • Each has its own energy levels
   • Each one burns at its own speed
   • Each has a different color of electron
9. 8.

   A described result: a sodium lamp glows yellow-orange. Which lines cause that, Ren?

   • Sodium's lines near 589 nm
   • Lines spread across each color
   • Lines near 410 nm
10. 9.

    A neon sign glows red-orange. What causes the color, Tala?

    • The heat of the wires
    • Neon's own energy levels
    • Red paint on the glass tube
11. 10.

    In a described flame test, what does the color of the flame tell you, Zee?

    • How hot the room is
    • How much the sample weighs
    • Which element is present