Download Chemistry Fall-2016 Final

NAME 56 Matching questions
1. atomic mass unit (amu)
2. Homogeneous mixture
3. atomic number
4. Malleable
5. Solid
A. a change in which one or more substances combine or break
apart to form new substances B. an element of Group 17 of the periodic table; they combine
easily with metals to form salts 6. Chemical symbol
7. mass number
8. Chemical change
9. Element periods
10. Metalloid
11. Physical properties
12. Periodic table
13. Element groups
14. neutron
15. Filtration
16. Liquid
17. isotopes
18. Pure substance
19. Halogen
20. Ductile
21. Melting point
22. Law of Conservation of Matter
23. Noble gas
C. a positively charged subatomic particle with a mass of one
amu, located in the nucleus
D. elements that are good conductors of heat and electricity,
they tend to be ductile, malleable, and shiny; form positive
ions in an electrolytic solution E. a row in the periodic table; atomic number increases from left
to right 24. Reactants
25. Boiling point
26. Dalton's atomic theory
27. Periodic law
28. Products
F. matter that has a definite shape and volume; particles are
locked together but vibrate G. the gaseous state of a substance that is a liquid or solid at
room temperature 29. nucleus
30. atomic mass
31. Volume
32. Gas
33. Transition metals
34. net charge
35. Mass
36. Heterogeneous mixture
37. Solution
H. elements that conduct heat and electricity poorly; solids are
usually brittle; do not form positive ions in an electrolytic
solution; I. any atom or group of atoms that has gained or lost one or
more electrons, and therefore has a positive or negative net
38. electron
39. Elements
40. Mixtures
41. Alkali metal
42. Alkaline earth metal
charge J. the difference between the number of protons and the number
of electrons in an atom or ion; if there are more protons than
electrons, the net charge is positive; if there are more
43. Density
44. Chemical reaction
45. Physical change
46. proton
47. Molecule
48. Nonmetals
electrons than protons, the net charge is negative K. an early theory relating chemical changes to events at the
atomic level
49. ion
50. Distillation
51. Compounds
52. Chemical formula
L. substances made of two or more elements chemically
combined; a pure substance M. a standard unit of mass equal to one twelfth of the mass of a
53. Vapor
54. Metals
55. Matter
56. Inner transition metals
carbon-12 atom; the proton and the neutron both have a mass
of approximately one amu
N. the number of protons in an atom O. formed as a result of two or more atoms combining - the
atoms may be the same kind or different kinds P. temperature at which a substance changes from a solid to a
liquid; a physical property Q. represents a compound; contains element symbols and the
ratio of atoms R. substances that are broken apart or combined in a chemical
reaction S. atoms of the same kind that cannot be broken down further by
physical or chemical means; a pure substance T. a negatively charged subatomic particle with negligible mass
located outside of the nucleus
U. a process that separates a liquid from a mixture by boiling V. anything that has mass and takes up space W. the amount of matter in an object, usually measured in grams X. physical property of a metal that can be drawn out into a wire Y. a subatomic particle that has no charge, with a mass of one
amu, located in the nucleus
Z. a process that separates a solid from a liquid in a
heterogeneous mixture AA. any metal in Group 2A of the periodic table; generally harder,
denser, stronger, and have higher melting points than alkali
metals AB. physical property of a metal that can be pounded or rolled
into sheets without breaking or cracking AC. characteristics of matter that can be measured and observed
without changing the makeup of the substance AD. an element of Group 18 of the periodic table; they rarely take
part in chemical reactions AE. an element that has some properties in common with metals
and some in common with nonmetals AF. a one, two, or three letter representation of an element; the
first letter is always capitalized AG. new substances formed in a chemical reaction AH. the total number of protons and neutrons in an atom AI. elements and compounds that have a specific set of
identifying properties; has a uniform and definite composition AJ. atoms of the same element that have the same atomic number
but different mass numbers AK. when elements are arranged in order of increasing atomic
number, there is a periodic repetition of their properties AL. one of the Group B (Groups 3-12) elements that is usually
displayed in the main body of the periodic table AM. a scientific law which states that matter cannot be created or
destroyed; in a chemical reaction, the total mass of the
reactants equals the total mass of the products AN. matter that does not have a definite shape or volume; particles
move at high speeds and are spread far apart AO. the amount of space an object takes up, usually measured in
liters AP. the weighted average mass of the atoms of an element in a
naturally occurring sample AQ. the measure of an object's mass compared to volume;
heaviness compared to size/volume AR. an element in the lanthanide or actinide series; elements that
appear below the main body of the periodic table AS. temperature at which a substance changes from a liquid to a
gas; a physical property AT. the component substances cannot be visibly distinguished;
uniform throughout AU. the dense central core of an atom
AV. another name for a homogeneous mixture; a solute dissolved
in a solvent AW. any metal in Group 1A of the periodic table; usually soft, shiny,
and react violently with water AX. the component substances can be visibly distinguished; not
uniform throughout AY. chart of all known elements arranged in rows (periods) by
ascending atomic number and columns by family (groups) AZ. change in which the appearance or state of matter changes
but the substance's chemical properties and makeup remain
the same BA. matter that has a definite volume but not a definite shape;
particles slip and slide past each other BB. also called families; are columns of elements on the periodic
table that have many similar properties; they are usually
numbered 1-18 BC. any reaction that alters the chemical properties of a substance
or forms a new substance BD. composed of two or more different substances that retain their
own individual properties; are combined physically