L10 | ATOMIC STRUCTURES | Atomic structures Flashcards
What are atoms are made up of?
Protons, neutrons, and electrons
Protons
positive electrical charge
Neutrons
neutral electric charge (neither negative nor positive)
Electrons
a negatively charged subatomic particle
What is a atom composed of?
- nucleus
- space around the nucleus
What is the nucleus made up of?
protons (+) & neutrons
What is the space around the nucleus made up of?
electrons (-)
What is the charge of a nucleus?
Positive (+)
How do you work out the mass of a atom?
Mass = Protons + Neatrons
Atomic Number?
Is the number of protons.
What does AZE stand for?
Atomic mass number (A)
Atomic number (Z)
Type of Atom (E)
What happens if electrons are added to an atom?
The atom will become more negative (anion).
What happens if electrons are taken away?
Then the atom will become more positive (cation).