It is a binary direct bandgap semiconductor commonly used in light-emitting diodes since the 1990s
Answer:
24 is the correct anwer
this the anwer text this u no
The similarities of physical and chemical changes is that both of those changes change the way the object looks by it's physical appearance. Also they use a type of element to change that object.
D sublevel because the s sublevel has one orbital, the p sublevel has three orbitals, the d sublevel has five orbitals, and the f sublevel has seven orbitals. In the first period, only the 1s sublevel is being filled.