Chapter 4 Flashcards
(17 cards)
What is Electronic structure?
An arrangement of electrons in an atom according to their energies with respect to the periodic table
What happens when an atom absorbs energy?
An electron in the atom moves from a lower energy level to a higher energy level
What is electromagnetic radiation?
The process of emitting the energy in the form of light
What is nanosecond?
A very brief period of time
What is the atomic spectrum?
Where all the wavelengths at high excited atoms of the same chemical element emit
What is used to identify a chemical element?
The atomic spectrum
What are energy levels for the electrons in an atom identified by?
Principle quantum number, n
What is the n for 32 electrons?
4
What is the n for 18 electrons?
3
What is the n for 8 electrons?
2
What is the n for 2 electrons?
1
What is the ground electronic state?
2n^2
What are valence electrons?
Electrons located in the highest energy levels of an atom in its ground electronic state
True or False: Positively charged nucleus attracts negatively charged electrons
True
What is ionization energy?
The energy required to remove one valence electron from an atom in the gas state
