This printable crossword puzzle on the topic of Elements & Periodic Table has 11 clues. Answers range from 4 to 15 letters long. This crossword is also available to download as a Microsoft Word document or a PDF.
the positively charged central core of an atom, consisting of protons and neutrons and containing nearly all its mass.
a stable subatomic particle with a charge of negative electricity, found in all atoms and acting as the primary carrier of electricity in solids.
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 occurring in all atomic nuclei, with a positive electric charge equal in magnitude to that of an electron, but of opposite sign.
a subatomic 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 total number of protons and neutrons in a nucleus
each of two or more forms of the same element that contain equal numbers of protons but different numbers of neutrons in their nuclei
the SI unit of amount of substance
each of the actual or potential patterns of electron density that may be formed in an atom or molecule by one or more electrons, and that can be represented as a wave function
a particle representing a quantum of light or other electromagnetic radiation
an outer shell electron that is associated with an atom, and that can participate in the formation of a chemical bond if the outer shell