Atomic Structure
This subatomic particle has a positive charge and is found in the nucleus of an atom
Proton
This is the lighest element in the periodic table, with an atomic number of 1.
Hydrogen
John Dalton's atomic theory proposed that all matter is made up of these small, indivisble particles.
Atoms
This process involves splitting a large atomic nucleus into smaller ones, releasing energy.
Nuclear Fission
Atoms bond together to form these basic building blocks of compounds.
Molecules
The Negatively charged particle that orbit the nucleus are called this.
Electrons
The atomic number of an element represents this property of its atom.
Number of Protons
J.J. Thomson discovered this negatively charged particle using a cathode tube.
Electron
The process that powers the sun, where small nuclei combine to form a large nucleus, is called this.
Nuclear Fusion
This type of bond occurs when atoms share electrons.
This subatmoic particle has no electrical charge and contributes to the atomic mass.
Neutron
This vertical column on the periodic table groups elements with similar chemical properties.
Group or Family
This scientist's gold foil experiement lead to the discovery of the nucleus.
Ernest Rutherford
This term refers to the spontaneous breakdown of an unstable atomic nucleus, releasing radiation
Radioactive decay
Isotopes of an element differ in the number of these subatomic particles.
Neutrons
This central part of the atom contains protons and neutrons.
Nucleus
This element, with the symbol "Au," is highly valued for its use in jewerly and electronics.
Gold
Niels Bohr proposed a model in which electrons orbit the nucleus in these specific energy levels.
Shells or orbitals
In a nuclear power plant, this element with the symbol "U," is commonly used as fuel.
This common element, found in water and organic molecules, has an atomic number of 8.
The electron configuration of an atom determines this property, which influences its chemical behavior.
Reactivity
The rows in the periodic table are called this and represent the number of electron shells in the atoms of the elements.
Periods
The mordern atomic model is based on the theory, which describes electrons as existing in a probability cloud rather than fixed paths.
This term describes the tiem it takes for half of a radioactive substance to decay.
Half-life
The process where atoms transfer electrons to achieve a full outer shell results in this type of bond.
Ionic Bond