2.1.2 Atomic Structure Flashcards
What are the three subatomic particles?
Neutrons, Protons and Electrons.
Where are the protons and neutrons in the atom?
The Nucleus
Where are the electrons located in the atom?
In orbital paths called Shells.
What is relative atomic mass?
The measure of mass for subatomic particles. It is equal to 1/12 the mass of a Carbon 12 atom.
What are the masses and charges of the three subatomic particles?
What is the atomic number of an atom?
The number of protons in the nucleus.
What is the symbol for atomic number?
Z
What is the Nucleon number (or mass number) of an atom?
It is the total number of protons and neutrons in the nucleus of an atom.
What is the symbol for Nucleon number?
A
How can you calculate the number of neutrons in a nucleus?
The Nucleon number minus the Proton number.
What is a nucleon?
A proton or a neutron.
How do A and Z appear in the Periodic Table?
