Chemistry Crossword #1

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Across
  1. 2. When electrons jump back to their original shell, they release energy in the form of
  2. 3. When an anion is formed, it means that the element has ______ electrons
  3. 7. The atomic number is defined as the number of
  4. 9. Hydrogen, Lithium, Sodium, Potassium, Rubidium, Caesium and Francium belong to group
  5. 10. The group number tells us how many _______ electrons an atom has
  6. 11. When cations and anions are in solution it means the water can ___ around it
  7. 13. Substances that are made up of more than one atom are called
  8. 17. The nucleus is made up of these particles
  9. 18. If Boron is from period 2 then it means it has ___ electron shells
  10. 19. Elements from groups 1 and 2 tend to form positively charged ions
  11. 20. Substances that are made up of more than one type of atom in a fixed ratio are called
  12. 23. These particles are found orbiting the nucleus in shells
  13. 26. Iron is found in this state
  14. 28. Chlorine is from group 7 and so it can be classified as a
  15. 29. A neutral particle found inside the nucleus
  16. 31. When a cation is formed, it means that the element has ____ electrons
Down
  1. 1. There are three main states of matter: Gas, liquid and _____
  2. 4. Elements from groups 5-8 tend to form negatively charged ions
  3. 5. A positively charged particle
  4. 6. The group number to which Boron, Aluminium, Gallium, Indium and Thallium belong to is group
  5. 7. The horizontal rows of the periodic table are called
  6. 8. Aluminium is classified as this
  7. 11. The vertical columns of the periodic table are called
  8. 12. Electron shells have letters assigned to them. Therefore, an element with four shells will have ____ shells
  9. 14. Nitrogen is found in this state
  10. 15. A negatively charged ion is called an
  11. 16. When a metal and a non-metal combine, they form what's known as an
  12. 21. An alloy is a _______ of metals
  13. 22. Electrons, protons and neutrons are found inside these
  14. 23. The period number tells us how many ________ shells an atom has
  15. 24. Substances that are made up of one type of atom are called
  16. 25. When electrons jump to other electron shells they need to absorb this
  17. 27. A positively charged ion is called a
  18. 30. The group number to which Helium, Neon, Argon, Krypton, Xenon and Radon belong to is group
  19. 32. The group number to which Oxygen, Sulfur, Selenium, Tellurium and Pollonium belong to is group