Across
- 2. The temperature at which boiling occurs. At sea level, it is 100 °C (212 °F) for pure water. Water boils at lower temperatures at higher altitudes because air pressure is lower there. (two words, no space)
- 5. What did the gravedigger do? Period 6, Alkaline Earth Group
- 7. This group exists in all three states of matter at room temperature; Solid (Iodine), Liquid (Bromine), and gas (Fluorine). (two words, no space)
- 12. A state of matter with certain physical properties. o Solid, liquid, and gas are this and occur naturally on Earth. o Plasma is this found in stars.
- 13. By the 1860's there were only _______ (number) elements known to science. (two words, no space)
- 16. What was the first metal used by humans 7,000 years ago?
- 17. A phase in which matter has definite volume but no definite shape. o It will take the shape of a container but cannot expand or be compressed. o Molecules in this phase move randomly but stay close to one another.
- 18. Most of an atom between the nucleus and the electron orbitals is made up of... (two words, no space)
- 21. Fusion of Hydrogen that happens in Stars creates...
- 23. These elements can carry electrical charges or not under special conditions, making them good for computers.
- 25. Sodium and Chlorine are an example of Group 1A and Group 7A elements coming together to make... (two words, no space)
- 26. How many groups of Rare Earth elements are there?
- 27. To change from a liquid to a solid.
- 28. What does the Group name Halogen mean in Group 7A? (two words, no space)
- 30. Group 3B, Period 6 are the...
- 31. To change from a liquid to a gas.
- 32. These are the six most common elements making up the bodies of biological creatures...
- 33. A phase in which matter has a definite shape and a definite volume. o This phase will retain the same shape and volume in any container. o Atoms in this are held in a rigid structure and cannot move freely. o Water in this phase is called ice.
- 35. Period 3, Group 2. Name that element.
- 36. Fusion in Stars creates elements all the way up to the element ...
- 37. The death of Stars is called a ___________ and is the event that is responsible for creating most of the elements with an atomic number above Iron.
- 39. How many valence electrons in the outer shell of the Alkaline Earth Metals.
Down
- 1. An element has five energy levels. What Period is it in?
- 3. How many energy levels are there in all Period 2 elements?
- 4. What is the Group Number of the Noble Gases? (one word and a letter, no space)
- 6. The temperature at which melting occurs. o At sea level, this is 0 °C (32 °F) for pure ice. (two words, no space)
- 8. Group 3B, Period 7 are the...
- 9. What is one of the densest metals, with a small bar having a mass of almost 60lbs and a value of 1.5 million dollars?
- 10. Bronze is an alloy of these two metals often used in the production of high-quality bells for its exceptional sound. (two words, no space)
- 11. To change from a solid to a liquid
- 14. Period 4, Nitrogen Group. Atomic number of that element? (two words, no space)
- 15. Why aren't the Noble Gases reactive? They have a full... (two words, no space)
- 19. _____________ have properties of both metals and non-metals
- 20. All the elements in one group/family have the same number of _____________ ______________ in their outer shell. (two words, no space)
- 22. Most of the elements in the periodic table are of this type...
- 24. When I heard they were dating I was like (Period 2, Group 6A) (Period 3, Alkaline Earth Group)...
- 25. How many B-group/Transition Metal columns are there? (and you will study this group in high school)
- 27. The temperature at which freezing occurs. At sea level, it is 0 °C (32 °F) for pure water. (two words, no space)
- 29. A phase in which matter has no definite shape or volume. o It will expand to fill any container. It can also be compressed. o Molecules in this phase are relatively far apart and move freely. o Water in this phase is called water vapor
- 32. Groups or Families are _______ and tell how many VALENCE ELECTRONS those elements have
- 34. Are the Alkali Metals reactive?
- 38. Periods are ______ that run right-left and tell how many ORBITAL SHELLS those elements have