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Test your basic knowledge |
Pre - AP Chemistry
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Subjects
:
pre-ap
,
science
Instructions:
Answer 50 questions in 15 minutes.
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Match each statement with the correct term.
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This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.
1. The physical and chemical properties of the elements are periodic functions of their atomic numbers.
line-emission spectrum
periodic law
ionization
reactant
2. Two quantities that give a constant value when one is divided by the other
quantum
alkaline-earth metals
direct proportion
chemical reaction
3. The arrangement of electrons in an atom
cation
periodic table
electron configuration
plasma
4. The emission of a continuous range of frequencies of electromagnetic radiation.
intensive property
transition metals
frequency
continuous spectrum
5. The ratio of mass to volume or mass divided by volume
density
chemical
chemistry
metal
6. The state of matter in which a substance has neither definite volume nor definite shape
conversion factor
alkali metals
gas
average atomic mass
7. A form of energy that exhibits wavelike behavior as it travels through space (3.00x108 m/s)
electromagnetic radiation
actinide
Magnetic Quantum Number
chemistry
8. A horizontal row of elements in the periodic table
solid
density
photoelectric effect
period
9. Particle of electromagnetic radiation having zero mass and carrying a quantum of energy.
physical property
photon
average atomic mass
group
10. The 14 elements with the atomic numbers 58-71.
mixture
pure substance
lanthanide
ionization energy
11. Any process that results in the formation of an ion.
cation
ionization
atom
alkaline-earth metals
12. The closeness of a set of measurements of the same quantity made in the same way
homogeneous
mixture
precision
valence electrons
13. The number of protons in the nucleus of each atom of an element
ionization
system
atomic number
electromagnetic spectrum
14. The total amount of energy level an atom has.
Quantum Numbers
Principle Quantum Number
quantity
model
15. A substance that has a fixed composition and differs from a mixture in that every sample of a given pure substance has exactly the same characteristic properties and composition
density
hertz
pure substance
gas
16. Anything that has mass and takes up space
matter
atomic number
volume
actinide
17. 1/2 the distance between the nuclei of identical atoms that are bonded together.
density
atomic radius
Principle Quantum Number
main-group elements
18. An element that is a good conductor of heat and electricity
electron configuration
metal
Heisenberg Uncertainty Principle
Quantum Theory
19. The amount of space occupied by an object
derived unit
change of state
atomic radius
volume
20. A short-range proton-neutron - proton-proton - or neutrorce that holds the nuclear particles together
nuclear force
gas
Magnetic Quantum Number
hertz
21. A testable statement
orbital
hypothesis
cation
law of definite proportions
22. The 14 elements with the atomic numbers 90-103.
orbital
quantity
electromagnetic spectrum
actinide
23. A broad generalization that explains a body of facts or phenomena
atomic radius
theory
wavelength
matter
24. Emission of electrons from a metal when light shines on a metal.
continuous spectrum
photoelectric effect
heterogeneous
actinide
25. The suborbitals of an atom. (S - P - D - F)
compound
Angular Momentum Quantum Number
chemical reaction
alkali metals
26. If two or more different compounds arecomposed of the same two elements - then the ratio of the masses of the secondelement combined with a certain mass of the first element is always a ratio ofsmall whole numbers
family
system
transition metals
law of multiple proportions
27. A vertical column of the periodic table
electromagnetic radiation
ion
chemical property
family
28. No two electrons in the same atom can have the same set of four quantum numbers
derived unit
Pauli exclusion principle
mass
ground state
29. A measure of the gravitational pull on matter
ion
gas
electronegativity
weight
30. Orbitals of equal energy are each occupied by one electron before any orbital is occupied by a second electron - and all electrons in singly occupied orbitals must have the same spin state.
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31. A physical change of a substance from one state to another
nuclear force
change of state
law of conservation of mass
intensive property
32. The state of matter in which the substance has definite volume and definite shape
photon
solid
reactant
intensive property
33. A unit of mass that is exactly 1/12 the mass of a carbon-12atom - or 1.660 540 × 10-27 kg
ground state
plasma
atomic mass unit
metalloid
34. The study of the composition - structure - and properties of matter and the changes it undergoes
hypothesis
continuous spectrum
scientific method
chemistry
35. An outer main energy level occupied - in most cases - by 8 electrons
nuclide
frequency
Hund's rule
noble gas configuration
36. The measurement system accepted worldwide
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37. A substance that is made from the atoms of two or more elements that are chemically bonded
chemical property
law of definite proportions
compound
halogens
38. An element that has some characteristics of metals and some characteristics of nonmetals
metal
lanthanide
law of multiple proportions
metalloid
39. States that it is impossible to determine simultaneously both the position and velocity of an electron or any other particle.
ionization energy
physical property
Heisenberg Uncertainty Principle
Angular Momentum Quantum Number
40. Mass is neither created nor destroyed duringordinary chemical or physical reactions
law of conservation of mass
electron configuration
accuracy
nuclide
41. A blend of two or more kinds of matter - each of which retains its own identity and properties
mixture
accuracy
anion
metal
42. The energy required to remove one electron from a neutral atom of an element.
atomic number
physical change
electromagnetic radiation
ionization energy
43. An arrangement of the elements in order of their atomic numbers so that the elements with similar properties fall in the same column or group.
periodic table
law of definite proportions
molar mass
Aufaub principle
44. A positive ion.
cation
chemical
valence electrons
law of definite proportions
45. A high-temperature physical state of matter in which atoms lose their electrons
solid
system
plasma
noble gas configuration
46. A logical approach to solving problems by observing and collecting data - formulating hypotheses - testing hypotheses - and formulating theories that are supported by data
law of conservation of mass
frequency
scientific method
actinide
47. The amount of a substance that contains as many particles as there areatoms in exactly 12 g of carbon-12
mole
anion
accuracy
quantum
48. Atoms of the same element that have different masses
precision
noble gas configuration
isotopes
electron affinity
49. A chemical compound contains the same elementsin exactly the same proportions by mass regardless of the size of the sample orthe source of the compound
law of definite proportions
metalloid
average atomic mass
valence electrons
50. Having a uniform composition throughout
mole
group
chemical reaction
homogeneous
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