Question

If l increases within a shell with the same n for electrons in an atom, the energy of the electron goes up, and its speed goes down.

1) True
2) False

Answer 1

When the principal quantum number (n) increases within a shell for electrons in an atom, the energy of the electron goes up, and its speed goes down.

Step-by-step explanation:

When the principal quantum number (n) increases within a shell for electrons in an atom, the energy of the electron goes up, and its speed goes down. This is because as the electron moves farther away from the nucleus, it is less attracted to the positive charge of the nucleus, leading to higher energy. The increase in energy due to n is more significant for smaller orbitals (1s through 3p), while for larger orbitals the increase in energy due to l (angular momentum quantum number) becomes comparable and cannot be simply predicted.