Atomic Structure Flashcards
What is an atom?
The simplest particle of an element that an exist on its own in a stable environment
What is the relative mass of a proton
1
What is the relative mass of a neutron?
1
What is the relative mass of a electron ?
1/1840
What is the relative charge of a proton?
1+
What is the relative charge of a neutron?
0
What is the relative charge of an electron?
1-
Where is a proton located?
Nucleus
Where are neutrons located?
Nucleus
Where are electrons located?
Shells
What does the atomic number of an element represent?
The number of protons
What does the mass number of an element represent?
The number of protons and neutrons
What is an isotope?
Atoms of the same element, in the same state but different mass number (number of neutrons).
What is the equation for relative atomic mass?
Σ(mass number X abundance)
——————————————
Σ abundance
What’s compound?
Substance formed when two or more elements are chemically combined.
