Discussing this chapter, a classmate says, "An element that commonly forms a cation is a metal." Do you agree or disagree?
Step 11 of 5
Our task is to determine whether the following statement is correct:
"An element that commonly forms a cations a metal."
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The laser pointer emits light because electrons in the material are excited (by a battery) from their ground state to an upper excited state. When the electrons return to the ground state, they lose the excess energy in the form of 532-nm photons. What is the energy gap between the ground state and excited state in the laser material?