Periodic Table

1234567
Across
  1. 2. an element that lacks most of the properties of a metal; these are found on the right-hand side of the zigzag line on the periodic table
  2. 5. elements in the same vertical column of the periodic table; also known as a 'family'
  3. 7. a small particle in the nucleus of the atom; it has no electrical charge
Down
  1. 1. a negatively charged particle found outside the nucleus of an atom
  2. 2. the central core of the atom made up of protons and neutrons
  3. 3. the basic particle from which all elements are made
  4. 4. a class of elements characterized by physical properties that include shininess, malleability, ductility, and conductivity; these are found on the left-hand side of the zigzag line on the periodic table
  5. 6. a positively charged particle that is part of an atom's nucleus; the number of protons is known as the atomic number