Icp crossword 2/15/22

Edit Answers
123456789101112131415
Across
  1. 2. the sum of the protons and the neutrons in the element
  2. 5. the horizontal rows in the periodic table
  3. 6. the vertical columns in the periodic table
  4. 8. particles with a positive 1 charge
  5. 9. atoms of the same element that have different numbers of neutrons. (different mass numbers)
  6. 13. neutral particles that have 0 charge
  7. 14. the weighted-average mass of the mixture of its isotopes
  8. 15. small positively charged center of the atom. contains the protons and neutrons
Down
  1. 1. particles with a negative 1 charge
  2. 3. the smallest piece of matter that still retains the properties of the element
  3. 4. uses the symbol of the element and dots to represent the electrons in the outer energy level
  4. 7. the elements are arranged by increasing atomic number and by changes in physical and chemical properties
  5. 10. and neutrons are made of even smaller particles called
  6. 11. area around the nucleus of an atom where its electrons are most likely found
  7. 12. the number of protons in the element