Protons, Neutrons, and Electrons Flashcards
What are the three distinct parts of an atom?
The protons, neutrons, and electrons, protons and neutrons are the bigger particles: they make up the core of an atom (atom nucleus)
What charge do protons have?
A positive charge, such as one side of a magnet
(without neutrons to space out the protons, the protons would push each other)
What charge do neutrons have?
No charge
Do the number of protons tell what atom is which?
Yes
- atoms with 1 proton = hydrogen,
- atoms with 47 protons = silver,
- atoms with 82 protons = lead
What charge do electrons have?
A negative charge
(electrons in an atom are smaller and they exist on the outside around the nucleus)
If there’s a stable atom, is the number of electrons the same as the number of protons?
Yes
What is a charged atom (ion)?
When an atom has one more proton or electron
(e.g. a lead atom has 82 protons and 81 electrons)