This printable crossword puzzle on the topic of Elements & Periodic Table has 20 clues. Answers range from 3 to 18 letters long. This crossword is also available to download as a Microsoft Word document or a PDF.
smallest particle of an element
pure substance that cannot be broken down into any other substances
positively charged particles found within the nucleus, has a mass of one
negatively charged particles that surrounds an atoms nucleus, have nearly no mass
composed protons and neutrons found in the center of an atom
uncharged particles found within a nucleus, they give the atom an over-all neutral charge because they cancel each other out
a measurement of the total number of particles in an atom's nucleus
atoms that have the same number of protons but a different number of neutrons in their nuclei, which creates a heavier or lighter version of the same element
building blocks of atoms
the first level of a bohr model can have ___ electrons
the second level of a bohr model can have ___ electrons
the fourth level of a bohr model can have ___ electrons
the third level of a bohr models can have ___ electrons
hydrogen is the ___ element on the Periodic Table
the last element on the periodic table is
Lithium is the ___ on the periodic table
zinc has ____ protons
the second element on the periodic table is
Carbon has a rounded atomic mass of
one of the most dangerous elements in the periodic table is