student exploration:element builder-vocabulary
Terms in this set (15)
the BASIC UNIT of a chemical element
the number of protons in the nucleus of an ATOM, which determines the chemical properties of an element and its place in the periodic table.
a stable subatomic particle with a charge of NEGATIVE electricity, found in all atoms and acting as the primary carrier of electricity in solids.
electron dot diagram
diagrams that show the bonding between atoms of a molecule and the lone pairs of ELECTRONS that may exist in the molecule.
each of more than ONE HUNDRED SUBSTANCES that cannot be chemically introverted or broken down into simpler substances and are primary constituents of matter.
the fixed amount of ENERGY that a system described by quantum mechanics, such as a molecule, atom, electron, or nucleus, can have.
an atom or molecule with a net electric charge due to the loss or gain of ONE OR MORE ELECTRONS.
each of 2 or more forms of the same element that contain EQUAL NUMBER OF PROTONS but DIFFERENT NUMBER OF NEUTRONS in their nuclei, and hence differ in relative atomic mass but not in chemical properties,a radioactive form of an element.
the TOTAL NUMBER OF PROTONS AND NEUTRONS in a nucleus.
a substance particle of about the SAME MASS AS A PROTON BUT WITHOUT AN ELECTRIC CHARGE present in all atomic nuclei, except those of ordinary hydrogen.
the positively charged CENTRAL CORE OF AN ATOM , consisting of protons and neutrons and containing nearly all its mass.
a TABLE OF CHEMICAL ELEMENTS arranged in order of atomic number, usually in rows so that elements with simpler atomic structure (and hence similar chemical properties) appear in vertical column.
a stable substance particle occurring in all atomic nuclei, with a POSITIVE ELECTRIC CHARGE equal in magnitude to that of an electron, but of opposite sign.
emitting or relating to the emission of ionizing RADIATION or particles.
an ELECTRON that is associated with an atom, and that can participate in the formation of a chemical bond.