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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 14 elements with the atomic numbers 90-103.
actinide
frequency
photoelectric effect
heterogeneous
2. Lowest energy state of an atom.
Spin Quantum Number
ground state
heterogeneous
physical property
3. One wave per second.
anion
atom
hertz
isotopes
4. A horizontal row of elements in the periodic table
metalloid
orbital
period
periodic table
5. An electron occupies the lowest-energy orbital that can receive it
law of definite proportions
periodic table
Aufaub principle
atomic mass unit
6. A substance that is formed by a chemical change
intensive property
ion
group
product
7. Distance between corresponding points on adjacent waves.
wavelength
pure substance
matter
Avogadro's number
8. A measure of the ability of an atom in a chemical compound to attract electrons from another atom in the compound.
orbital
quantum
system
electronegativity
9. Two quantities that have a constant mathematical product
inverse proportion
law of definite proportions
chemistry
noble gas configuration
10. The arrangement of electrons in an atom
atom
electron configuration
group
atomic radius
11. Numbers written in the form M ×10 number greater than or equal to 1 but less than 10 and n is a whole number
ion
anion
density
scientific notation n where the factor M is a scientific notation
12. A property that does not depend on the amount of matter present
mass
intensive property
Quantum Numbers
line-emission spectrum
13. A physical change of a substance from one state to another
significant figure
change of state
cation
nuclide
14. Not having a uniform composition throughout
conversion factor
ground state
chemical reaction
heterogeneous
15. Any digit in a measurement that is known with certainty plus one final digit - which is somewhat uncertain or is estimated
chemical property
significant figure
average atomic mass
electromagnetic spectrum
16. Atoms of the same element that have different masses
isotopes
average atomic mass
atomic radius
Avogadro's number
17. States that it is impossible to determine simultaneously both the position and velocity of an electron or any other particle.
actinide
average atomic mass
Heisenberg Uncertainty Principle
mole
18. A pure substance made of only one kind of atom
derived unit
chemical property
element
homogeneous
19. A testable statement
hypothesis
chemical property
Aufaub principle
isotopes
20. The elements of group 1 of the periodic table.
Heisenberg Uncertainty Principle
mixture
electromagnetic radiation
alkali metals
21. Emission of electrons from a metal when light shines on a metal.
photoelectric effect
photon
quantity
continuous spectrum
22. Describes mathematically the wave properties of electrons and other very small particles.
Aufaub principle
lanthanide
cation
Quantum Theory
23. The emission of a continuous range of frequencies of electromagnetic radiation.
continuous spectrum
atomic radius
law of definite proportions
electromagnetic spectrum
24. Combination of all the forms of electromagnetic radiation.
law of multiple proportions
electromagnetic spectrum
quantum
photon
25. The electrons available to be lost - gained - or shared in the formation of chemical compounds.
wavelength
derived unit
valence electrons
mass number
26. 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
pure substance
average atomic mass
solid
SI (Le Système International d'Unités
27. The closeness of a set of measurements of the same quantity made in the same way
group
lanthanide
precision
periodic law
28. A logical approach to solving problems by observing and collecting data - formulating hypotheses - testing hypotheses - and formulating theories that are supported by data
noble gas configuration
scientific method
extensive property
law of multiple proportions
29. Having a uniform composition throughout
homogeneous
quantity
Quantum Numbers
mass number
30. An element that has some characteristics of metals and some characteristics of nonmetals
Principle Quantum Number
weight
model
metalloid
31. 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
Aufaub principle
ion
law of multiple proportions
group
32. A form of energy that exhibits wavelike behavior as it travels through space (3.00x108 m/s)
electromagnetic radiation
system
significant figure
metalloid
33. Any process that results in the formation of an ion.
Angular Momentum Quantum Number
nonmetal
Quantum Numbers
ionization
34. The amount of a substance that contains as many particles as there areatoms in exactly 12 g of carbon-12
matter
mole
mixture
compound
35. Anything that has mass and takes up space
intensive property
model
orbital
matter
36. The state of matter in which a substance has neither definite volume nor definite shape
plasma
frequency
wavelength
gas
37. Something that has magnitude - size - or amount
quantity
liquid
significant figure
transition metals
38. The total amount of energy level an atom has.
Principle Quantum Number
Heisenberg Uncertainty Principle
noble gas
molar mass
39. 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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40. A characteristic that can be observed or measured without changing the identity of the substance
halogens
quantum
ion
physical property
41. The Group 18 elements (helium - neon - argon - krypton - xenon - and radon)
electron affinity
quantum
noble gas
halogens
42. A vertical column of the periodic table
electron configuration
isotopes
percent error
group
43. A 3D region around the nucleus that indicates the probable location of an electron.
periodic table
chemistry
orbital
photoelectric effect
44. A vertical column of the periodic table
nuclide
anion
family
derived unit
45. The ratio of mass to volume or mass divided by volume
Aufaub principle
accuracy
scientific method
density
46. Mass is neither created nor destroyed duringordinary chemical or physical reactions
change of state
period
line-emission spectrum
law of conservation of mass
47. The smallest unit of an element that maintains the properties of that element
law of conservation of mass
atom
chemical
Pauli exclusion principle
48. A change in a substance that does not involve a change in the identity of the substance
physical change
physical property
mass
intensive property
49. The ability of a substance to undergo a change that transforms it into a different substance
electromagnetic radiation
line-emission spectrum
chemical property
atom
50. The amount of space occupied by an object
volume
electron configuration
chemical
conversion factor
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