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Test your basic knowledge |
Pre - AP Chemistry
Start Test
Study First
Subjects
:
pre-ap
,
science
Instructions:
Answer 50 questions in 15 minutes.
If you are not ready to take this test, you can
study here
.
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. Anything that has mass and takes up space
physical change
chemical
matter
period
2. A vertical column of the periodic table
intensive property
scientific notation n where the factor M is a scientific notation
family
ion
3. Emission of electrons from a metal when light shines on a metal.
alkaline-earth metals
nuclide
photoelectric effect
chemical reaction
4. Distance between corresponding points on adjacent waves.
scientific method
liquid
wavelength
conversion factor
5. The d-block elements are metals with typical metallic properties.
transition metals
law of definite proportions
Pauli exclusion principle
molar mass
6. Numbers written in the form M ×10 number greater than or equal to 1 but less than 10 and n is a whole number
scientific notation n where the factor M is a scientific notation
lanthanide
pure substance
nuclide
7. A substance that reacts in a chemical change
noble gas configuration
model
quantity
reactant
8. A broad generalization that explains a body of facts or phenomena
Aufaub principle
law of multiple proportions
theory
law of conservation of mass
9. The ability of a substance to undergo a change that transforms it into a different substance
anion
intensive property
chemical property
gas
10. Minimum quantity of energy that can be lost or gained by an atom.
chemistry
quantum
atom
SI (Le Système International d'Unités
11. The closeness of a set of measurements of the same quantity made in the same way
electromagnetic radiation
precision
Magnetic Quantum Number
cation
12. A high-temperature physical state of matter in which atoms lose their electrons
group
halogens
transition metals
plasma
13. Having a uniform composition throughout
significant figure
plasma
weight
homogeneous
14. A specific portion of matter in a given region of space that has been selected for study during an experiment or observation
nuclear force
physical change
system
law of conservation of mass
15. 1/2 the distance between the nuclei of identical atoms that are bonded together.
alkali metals
Hund's rule
mass number
atomic radius
16. The elements of group 17 of the periodic table.
conversion factor
halogens
chemical
periodic table
17. The 14 elements with the atomic numbers 90-103.
Pauli exclusion principle
ionization
excited state
actinide
18. The number of protons in the nucleus of each atom of an element
anion
frequency
mass
atomic number
19. State in which an atom has a higher potential energy than it has in it's ground state.
excited state
Aufaub principle
line-emission spectrum
Hund's rule
20. Any digit in a measurement that is known with certainty plus one final digit - which is somewhat uncertain or is estimated
law of definite proportions
significant figure
ionization
atomic mass unit
21. 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
law of multiple proportions
chemical reaction
law of definite proportions
homogeneous
22. An atom or group of bonded atoms that has a positive or negative charge.
atom
plasma
ion
frequency
23. Any substance that has a definite composition
chemical
molar mass
heterogeneous
intensive property
24. The physical and chemical properties of the elements are periodic functions of their atomic numbers.
hypothesis
periodic law
law of definite proportions
Principle Quantum Number
25. The amount of a substance that contains as many particles as there areatoms in exactly 12 g of carbon-12
atom
valence electrons
mole
mixture
26. A horizontal row of elements in the periodic table
plasma
Principle Quantum Number
halogens
period
27. A substance that is made from the atoms of two or more elements that are chemically bonded
compound
transition metals
atomic number
orbital
28. An explanation of how phenomena occur and how data or events are related
scientific method
period
atomic number
model
29. Describes mathematically the wave properties of electrons and other very small particles.
atom
hertz
Quantum Theory
nuclear force
30. A testable statement
alkaline-earth metals
hypothesis
density
scientific notation n where the factor M is a scientific notation
31. A change in a substance that does not involve a change in the identity of the substance
physical change
atomic mass unit
compound
nuclear force
32. A measure of the gravitational pull on matter
orbital
weight
atom
product
33. The measurement system accepted worldwide
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34. The electrons available to be lost - gained - or shared in the formation of chemical compounds.
system
direct proportion
valence electrons
mass number
35. The state of matter in which a substance has neither definite volume nor definite shape
group
Avogadro's number
gas
intensive property
36. A ratio derived from the equality between two different units that can be used to convert from one unit to the other
conversion factor
mole
periodic table
ion
37. A vertical column of the periodic table
Spin Quantum Number
weight
group
mixture
38. An element that is a poor conductor of heat and electricity
period
Principle Quantum Number
group
nonmetal
39. 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.
electromagnetic spectrum
atom
valence electrons
periodic table
40. The emission of a continuous range of frequencies of electromagnetic radiation.
continuous spectrum
physical property
extensive property
mixture
41. The energy change that occurs when an electron is acquired by a neutral atom.
scientific notation n where the factor M is a scientific notation
accuracy
electron affinity
electromagnetic spectrum
42. A positive ion.
cation
mass
Spin Quantum Number
volume
43. One wave per second.
reactant
hertz
atom
weight
44. Particle of electromagnetic radiation having zero mass and carrying a quantum of energy.
valence electrons
cation
mixture
photon
45. A measure of the ability of an atom in a chemical compound to attract electrons from another atom in the compound.
liquid
intensive property
electronegativity
ionization energy
46. A value calculated by subtracting the experimental value from the accepted value - dividing the difference by the accepted value - and then multiplying by 100
group
physical change
percent error
quantity
47. The arrangement of electrons in an atom
compound
electron configuration
mole
direct proportion
48. 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
element
law of definite proportions
periodic law
photoelectric effect
49. Something that has magnitude - size - or amount
element
quantity
chemistry
electron affinity
50. The elements of group 1 of the periodic table.
family
ion
nuclear force
alkali metals