Flashcards in Matter Chapter 4 Atoms: Building Blocks of Matter Deck (17):
The nucleus is small, dense positively charged atom.
It is a neutron, electron, or proton.
A proton is a subatomic particle that has a positively charge and found in the nucleus.
The average of the masses of the existing isotope in an element.
A subatomic particle with no electric charge, and is found in the nucleus.
It is the number of protons in the nucleus of an atom.
An isotope is an element that has a different number of neutrons average element.
The sum of protons and neutrons in the nucleus of an atom.
Atomic Mass Unit
It is used to find the mass of a subatomic particle. (like a proton has one atomic mass unit.)
It is a negatively changed subatomic particle that is found in the electron cloud.
It is the space where electrons are most likely to be found in.
The location with in the electric cloud that an electron remains.
A particle that makes up all other known particles in the nucleus.
It can either attract or repel the particles on which it acts. Opposites charges attract, like charges repels.
Opposes the electromagnetic force of repulsion of the protons. The strong force "glues" the protons together to make the nucleus.
It's responsible for radioactive decay and is the decay to the power of the sun.