Atoms Flashcards
What is matter?
Anything that had MASS or VOLUME
What is a molecule.
Made up of two or more atoms.
What is a Chemical Symbol?
Representing an element
What is the Atomic Number?
Number of protons in the nucleus of an atom.
What is the Mass Number?
Sum of the protons and the neutrons in the nucleus of an atom.
What is the nucleus?
Small, dense POSITIVELY (+) charged center of an atom.
What is a proton?
Particle that has a POSITIVE charge(+))and is found in the nucleus of an atom.
What is an electron?
NEGATIVELY(-) particle found in an area outside the nucleus of an atom.
Nuetron
Particle with NO ELECTRIC CHARGE that is found in the nucleus of an atom.
All parts of the atom, and they charges they give are?
Neutron= has no charge
Proton=positive charge
Electron=negative charge
nucleus=positive charge, center of an atom