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31 Cards in this Set

  • Front
  • Back
What makes up all matter?
What makes up atoms?
Protons, neutrons, electrons
What makes up the nucleus of an atom?
Protons and neutrons
Where are electrons located in an atom?
They spin around the center (nucleus) of the atom.
What type of charge do electrons have?
What type of charge do protons have?
What type of charge do neutrons have?
Neutral=no charge at all
What makes up an element?
How many elements are there?
If an atom has 6 protons, how many electrons will it have and why.
It should have 6 electrons b/c the # of electrons usually needs to be the same as the number of protons.
What does "balanced" mean?
The atom has the same # of electrons and protons.
If an atom loses electrons, what happens?
It will have more protons and will have a positive charged.
If an atom gains gains electrons, what happens?
It will have more electrons and will have a negative charge.
What is an "ion"?
A "charged" atom.
How does electricity "pass"?
Electricity is passed from atom to atom.
What happens when electrons move between atoms?
A current of electricity is created.
How do electrons move from one atom to another?
In a flow.
What is a "flow"?
One electron is attached to an atom and another electron is lost from that atom.
What happens to the balance of an atom when electricity is passed?
The atom has one more proton and is "unbalanced" and looks for a free electron to fill the placed of the missing one.
What is an "unbalanced" atom?
It has more protons than electrons.
What type of charge does an "unbalanced" atom have?
What type of charge does a free electron have?
What does the free electron wait around for?
An unbalanced atom to give it a home.
What is a "charge"?
The attraction between the positive and negative charged groups.
How is a current of electricity created?
When electrons move among the atoms of matter.
Is electricity conducted the same through all types of materials?
What is resistance?
Where an atom holds its electrons tightly.
What is an insulator?
Something which holds onto its electrons tightly.
What are examples of good insulators?
Rubber,plastic, cloth, glass and dry air.
What is a conductor?
Materials that have loosely held electrons which move through them very easily.
what are good exampels of a conductor
most metals like copper, aluminum, or steel are good conductors