Structure 1.3 Electron Configuration

Question 1

When are emission spectra produced?

Answer 1

Produced by atoms emitting photons when electrons in excited states return to lower energy levels

Question 2

What does the line emission spectrum for hydrogen provide evidence for?

Answer 2

For the existence of electrons in discrete energy levels, which converge at higher energy levels

Question 3

What is the wavelength range for visible light?

Answer 3

400nm to 700nm

Question 4

How to find the energy possessed by a photon (J)?

Answer 4

E = frequency (Hz) x Planck’s Constant (6.63 x10^-34)

E=h*f

Question 5

What is the most stable state of the hydrogen atom?

Answer 5

The ground state (n = 1)

This is where the electron has the lowest possible energy

Question 6

What are non-ground states known as?

Answer 6

Excited states

Question 7

Which energy level must electrons return to be visible?

Answer 7

n = 2

Question 8

What happens when electrons return to the ground state (n=1)?

Answer 8

They release higher energy, shorter wavelength ultraviolet light

Question 9

What happens when electrons return to n = 3?

Answer 9

They release less energy and longer wavelength infrared radiation

Question 10

What is an atomic orbital?

Answer 10

A region in space where there is a high probability of finding an electron