Definitions

Question 1

Define an energy level

Answer 1

An energy level is defined as the fixed energy value that an electron in an atom may have

Question 2

Define the ground state of an atom.

Answer 2

The ground state of an atom is one in which the electrons occupy the lowest available energy levels

Question 3

Define the excited state of an atom.

Answer 3

The excited state of an atom is one in which the electrons occupy higher energy levels than those available in the ground state

Question 4

Give the equation for the frequency of light emitted in spectrometry.

Answer 4

E2-E1 = hf

Where E2 = energy of higher energy level and E1 = energy of lower energy and f = frequency of light emitted and h = Planck’s constant

Question 5

Define Heisenberg’s Uncertainty Principle.

Answer 5

Heisenberg’s Uncertainty Principle states that it is impossible to measure at the same time both the velocity and the position of an electron

Question 6

Define an orbital.

Answer 6

An orbital is a region in space within which there is a high probability of finding an electron