Atomic Structure Flashcards
Everything in the Universe, is made up of what?
Atoms
Protons are
Positive
Neutron is
Don’t have a charge
Electrons are
Negative
Electrons are normally found in the ……………………….. of an Atom.
Shell
Protons and Neutrons are normally found in the …………………………
Nucleus
What is the Radius of an Atom?
about 0.1 nm (1 × 10-10 m)
What is the of a Proton
1. Relative mass
2. Relative charge
- One
- Plus One
What is the of a Neutron
1. Relative mass
2. Relative charge
- One
- Zero
What is the of an Electron
1. Relative mass
2. Relative charge
- 0.0005
- -1
Which is the smallest subatomic particle in an atom?
Electrons
what does Relative mean?
In comparison to/ compared to
Where is most of the mass of an Atom concentrated?
In the nucleus
When Atoms Emit (release) Electromagnetic Radiation, what happens to the electron?
Moves to a lower energy level
Atomic Theory is
the idea everything is made up of tiny little partices
