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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.
Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.
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 14 elements with the atomic numbers 58-71.
law of multiple proportions
lanthanide
line-emission spectrum
chemical change
2. A form of energy that exhibits wavelike behavior as it travels through space (3.00x108 m/s)
element
transition metals
hertz
electromagnetic radiation
3. The physical and chemical properties of the elements are periodic functions of their atomic numbers.
family
periodic law
direct proportion
Angular Momentum Quantum Number
4. Number of waves that pass a given point in a specific time - usually one second.
nonmetal
precision
periodic law
frequency
5. A testable statement
physical change
SI (Le Système International d'Unités
inverse proportion
hypothesis
6. An electron occupies the lowest-energy orbital that can receive it
homogeneous
Aufaub principle
electronegativity
electron configuration
7. A property that depends on the amount of matter that is present
compound
photon
periodic table
extensive property
8. 1/2 the distance between the nuclei of identical atoms that are bonded together.
noble gas
anion
Pauli exclusion principle
atomic radius
9. A substance that reacts in a chemical change
change of state
reactant
orbital
law of definite proportions
10. Emission of electrons from a metal when light shines on a metal.
scientific method
accuracy
photoelectric effect
period
11. Two quantities that have a constant mathematical product
alkali metals
precision
chemical reaction
inverse proportion
12. The amount of a substance that contains as many particles as there areatoms in exactly 12 g of carbon-12
ground state
mole
scientific notation n where the factor M is a scientific notation
isotopes
13. A specific portion of matter in a given region of space that has been selected for study during an experiment or observation
Magnetic Quantum Number
law of conservation of mass
system
anion
14. 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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15. A positive ion.
intensive property
cation
atomic number
compound
16. A measure of the gravitational pull on matter
system
transition metals
chemical property
weight
17. Anything that has mass and takes up space
atomic number
Spin Quantum Number
noble gas configuration
matter
18. A vertical column of the periodic table
periodic table
liquid
family
SI (Le Système International d'Unités
19. 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
mass
atomic radius
electronegativity
20. Combination of all the forms of electromagnetic radiation.
noble gas
product
electromagnetic spectrum
Quantum Numbers
21. The total number of protons and neutrons in the nucleus of an isotope
photon
ionization
mass number
accuracy
22. A horizontal row of elements in the periodic table
frequency
period
model
cation
23. A change in which one or more substances are converted into different substances
alkaline-earth metals
atom
chemical reaction
chemical change
24. The emission of a continuous range of frequencies of electromagnetic radiation.
Principle Quantum Number
scientific notation n where the factor M is a scientific notation
volume
continuous spectrum
25. An explanation of how phenomena occur and how data or events are related
physical change
model
period
atomic number
26. A blend of two or more kinds of matter - each of which retains its own identity and properties
chemistry
intensive property
mixture
continuous spectrum
27. No two electrons in the same atom can have the same set of four quantum numbers
alkali metals
Heisenberg Uncertainty Principle
element
Pauli exclusion principle
28. The ability of a substance to undergo a change that transforms it into a different substance
physical property
pure substance
chemical property
electromagnetic spectrum
29. State in which an atom has a higher potential energy than it has in it's ground state.
halogens
significant figure
group
excited state
30. A change in a substance that does not involve a change in the identity of the substance
physical change
quantum
inverse proportion
Quantum Theory
31. Which way it spins. (up or down)
Spin Quantum Number
chemical change
Magnetic Quantum Number
atom
32. A property that does not depend on the amount of matter present
lanthanide
pure substance
intensive property
density
33. The suborbitals of an atom. (S - P - D - F)
chemistry
periodic table
Angular Momentum Quantum Number
gas
34. The mass of one mole of a pure substance
isotopes
noble gas
molar mass
plasma
35. Having a uniform composition throughout
molar mass
homogeneous
isotopes
compound
36. A short-range proton-neutron - proton-proton - or neutrorce that holds the nuclear particles together
compound
anion
noble gas
nuclear force
37. Atoms of the same element that have different masses
isotopes
matter
Pauli exclusion principle
period
38. The state of matter in which the substance has definite volume and definite shape
intensive property
mixture
scientific notation n where the factor M is a scientific notation
solid
39. An atom or group of bonded atoms that has a positive or negative charge.
main-group elements
ion
Principle Quantum Number
quantity
40. Something that has magnitude - size - or amount
quantity
nuclide
hypothesis
ion
41. A ratio derived from the equality between two different units that can be used to convert from one unit to the other
excited state
physical property
conversion factor
density
42. A negative ion.
anion
intensive property
nuclear force
mole
43. Narrow beam of the emitted light was shined through a prism - it was separated into four specific colors of the visible spectrum.
change of state
ionization
electromagnetic spectrum
line-emission spectrum
44. A broad generalization that explains a body of facts or phenomena
theory
cation
continuous spectrum
valence electrons
45. One wave per second.
quantity
significant figure
Avogadro's number
hertz
46. Specify the properties of atomic orbitals and the properties of electrons in orbitals.
cation
Quantum Numbers
atomic mass unit
quantity
47. Describes mathematically the wave properties of electrons and other very small particles.
Quantum Theory
ground state
ionization energy
product
48. The smallest unit of an element that maintains the properties of that element
atom
noble gas configuration
anion
ionization energy
49. Mass is neither created nor destroyed duringordinary chemical or physical reactions
anion
ionization energy
solid
law of conservation of mass
50. 6.022 1367 × 1023; the number of particles in exactly onemole of a pure substance
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