Chemistry Crossword #1

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