Periodic Table
Where are electrons found?
The electron cloud
How do you find the number of neutrons in an atom?
Subtract the atomic number from the atomic mass.
atomic mass-atomic number=neutrons
How many neutrons are in zirconium?
51
Where is most of an atoms mass located?
The nucleus
What does the term 'electron cloud' mean?
The area of an atom where electrons are likely to be found
How many neutrons are in hydrogen atoms?
None!