topic 7 Flashcards
Atom
The smallest particle of an element cannot be broken down by any chemical means.
Subatomic Particle
The particles inside an atom.
Proton
Particles found inside the nucleus with a positive charge.
Neutrons
Particles found inside the nucleus without any charge.
Nucleus
The positively charged center of an atom contains Protons and Neutrons.
Electrons
Particles found inside an atom with a negative charge.
Valence Electrons
Electrons in the outermost shell.
Shell
Path the electrons take orbiting the nucleus.
Atomic Number
The number of protons in the nucleus of an atom.
Nucleon
The total number of protons and neutrons in the nucleus of an atom.
Isotope
Atoms of the same element with the same proton number but different nucleon numbers.