chem study guide part 2: chapter 2
Across
- 3. represented by helium, lithium, beryllium, boron, carbon, nitrogen, oxygen, and fluorine
- 6. any of the six elements of Group 1 of the periodic table
- 9. Elements and compounds can exist as solids, liquids, or gases called a _______
- 11. encompasses the 14 metallic chemical elements with atomic numbers from 89 to 102
- 12. used to describe a substance which dissolves and forms a clear mixture with water
- 13. any of the series of fifteen metallic elements from lanthanum to lutetium in the periodic table.
- 15. A substance with high electrical conductivity, luster, and malleability, which readily loses electrons to form positive ions (cations)
- 17. any of the six chemical elements that comprise Group 2 of the periodic table
- 18. a way of presenting information about the chemical proportions of atoms that constitute a particular chemical compound or molecule, using chemical element symbols and numbers
- 21. naturally occurring members of group 18 of the periodic table
- 22. the building materials of all matter
- 23. the weighted average mass of the atoms in a naturally occurring sample of the element
- 24. the short columns in the center of the periodic table, between Group 2A and Group 3A
Down
- 1. element that mostly lacks metallic properties
- 2. states that mass cannot be gained or lost in a chemical reaction
- 4. a group in the periodic table consisting of six chemically related elements: fluorine, chlorine, bromine, iodine (I), astatine,
- 5. atomic mass is measured using _____________
- 6. the whole number in each elements square on the periodic table
- 7. The table Mendeleyev created, with elements organized into rows and columns
- 8. represent an element using letters on a periodic table
- 9. The horizontal rows of the periodic table
- 10. type of chemical element which has a preponderance of properties in between, ormixture of, those of metals and nonmetals
- 14. evidence of new substances forming during an experiment
- 16. numbered 1–18 from left to right
- 18. chemical substance composed of many identical molecules containing atoms from more than one chemical element held together by chemical bonds
- 19. property that describes how easily an element will combine with other substances to form new compounds
- 20. The mass of an atom