The Atom Flashcards
Isotopes
Atoms of the same element with different number of neutrons
Radioactive Isotopes
Less stable isotopes that have extra energy and more likely to decay
Nucleus
The center of an atom held together by nuclear force
Nuclear Chemistry
The study of changes to the nucleus atoms
Radioactivity
The emission of radiation
Radioactive Decay
Unstable nucleus emits radiation and losses energy
Half-Life
Time it takes for an atom to die
Alpha decay
The release of alpha particles
Whats another name for Alpha decay?
Alpha Raditation
Beta Decay
The release of a beta particle
What is another name for Beta Decay?
Beta Radiation
Gamma Radiation
Release of Gamma rays
Nuclear FISSION
The SPLITTING of a larger atom
Nuclear FUSION
COMBINING of 2 or more little atoms into a larger one
Nucleosynthesis
Formation of new elements through nuclear chemistry
Atomic Number
The number of protons in the nucleus of an atom
Mass number
The sum of protons and neutrons in an atom’s nucleus
Atomic Mass
The average mass of an atom of an element
Isotope Notation
The representation of an isotope
Ion
A charged atom
Bohr Model
Depicting the arrangement of electrons in energy levels
Atom
the smallest unit of an element
Element
A pure substance that cannot be broken down
Atomic Theory
Matter is made up of atoms
Proton
Positive particle
Neutron
A neutral particle
Electrons
A negative particle
Electric Cloud
space surrounding the nucleus with electrons
Valence electrons
Electrons in the out most energy level of an atom
Electromagnet Force
The force of attraction and repulsion between electrically charged particles
Strong Nuclear Force
The force that holds the nucleus together
