State of Matter

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Across
  1. 3. which element cuprum is latin name
  2. 5. what is the latin name of potassium
  3. 8. what is the mass no. of oxygen
  4. 10. what is the group of atom either in a compound or existing alone called________
  5. 13. Protons are always
  6. 14. Name an element whose atoms occur in pairs
  7. 15. the no. of atoms present in a molecule of an element is called_____________
  8. 16. Electrons are always
  9. 19. we use ______________ to represent elements.
Down
  1. 1. how many types of matter is there
  2. 2. no. A letter stand for which no.
  3. 4. Name an element which exists in the free state in nature
  4. 6. air is an eg. of which atom
  5. 7. Al is an eg. of which atom
  6. 9. I stand for which element
  7. 11. The smallest particle of a compound is
  8. 12. what is the atomic no. of oxygen
  9. 17. number no. of protons present in the nucleus of the atom of an element which are always to electrons in number.
  10. 18. in which matter molecules are tightly packed