PROJECT BY MISBAH SYED

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Across
  1. 3. gas , are all odorless, colorless, monatomic gases with very low chemical reactivity
  2. 4. , chlorine, argon, krypton, xenon and radon
  3. 8. earth metals , six chemical elements in group 2 of the periodic table
  4. 9. , a column of elements in the periodic table of the chemical element
  5. 11. radius , a chemical element is a measure of the size of its atoms, usually the mean or typical distance from the center of the nucleus to the boundary of the surrounding shells of electrons
  6. 12. , includes iron, lead, gold, aluminum, platinum, uranium, zinc, lithium, sodium, tin, silver, etc
  7. 13. , measures the tendency of an atom to attract a shared pair of electrons.
  8. 14. , a group of 15 chemical elements, with atomic numbers 57 through 71
  9. 15. , an element that has properties that are intermediate between those of metals and nonmetals
Down
  1. 1. metal , any of various chemical elements that have valence electrons
  2. 2. , a Russian chemist and inventor
  3. 5. , any of the series of fifteen metallic elements from actinium (atomic number 89) to lawrencium (atomic number 103) in the periodic table
  4. 6. , group in the periodic table consisting of five chemically related elements: fluorine (F), chlorine (Cl), bromine (Br), iodine (I), and astatine (At)
  5. 7. metals , lithium (Li), sodium (Na), potassium (K), rubidium (Rb), cesium (Cs), and francium (Fr)
  6. 10. , in the periodic table is a row of chemical elements