Vocab
The smallest unit of ordinary matter that forms a chemical element
What is an Atom
A subatomic particle, symbol p or p⁺ , with a positive electric charge
What is Proton
A quantum mechanical system or particle that is bound
What is Energy Level
the total number of protons and neutrons in an atomic nucleus.
What is Mass Number
weighted average of all of the isotopes of that element, in which the mass of each isotope is multiplied by the abundance of that particular isotope.
the small, dense region consisting of protons and neutrons at the center of an atom
What is Nucleus
a subatomic particle, symbol n or n⁰ , which has a neutral charge and a mass slightly greater than that of a proton.
What is Neutron
electrons in the outermost shell of the atom that determine an atom's or group's ability to bond with others.
What is Valence Electron
variants of a particular chemical element which differ in neutron number, and consequently in nucleon number.
what is Isotope
A group of electrons circulating around a nucleus or a molecule.
What is Electron cloud
a subatomic particle, symbol e⁻ or β⁻ , whose electric charge is negative one elementary charge.
What is Electron
a single packet of matter or energy.
What is Quantum
an energy level defined by quantum theory.
What is Sublevels
lowest-energy state of a quantum-mechanical system
What is Ground State
What is Atomic number
pictorial descriptions of the electrons in an atom
What is Orbital diagram
a representation of the valence electrons of an atom that uses dots around the symbol of the element
What is Electron dot symbol