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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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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. A horizontal row of elements in the periodic table
pure substance
photoelectric effect
Spin Quantum Number
period
2. The total amount of energy level an atom has.
inverse proportion
electron affinity
Principle Quantum Number
periodic table
3. A specific portion of matter in a given region of space that has been selected for study during an experiment or observation
physical change
orbital
ionization energy
system
4. The amount of space occupied by an object
volume
periodic law
physical property
molar mass
5. A positive ion.
quantity
chemical change
ionization
cation
6. A value calculated by subtracting the experimental value from the accepted value - dividing the difference by the accepted value - and then multiplying by 100
ion
percent error
frequency
Avogadro's number
7. The measurement system accepted worldwide
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8. The total number of protons and neutrons in the nucleus of an isotope
mass number
hypothesis
halogens
chemical
9. The suborbitals of an atom. (S - P - D - F)
alkaline-earth metals
Angular Momentum Quantum Number
transition metals
homogeneous
10. The weighted average of the atomic masses of thenaturally occurring isotopes of an element
conversion factor
heterogeneous
average atomic mass
wavelength
11. An outer main energy level occupied - in most cases - by 8 electrons
noble gas configuration
period
theory
transition metals
12. The elements of group 2 of the periodic table.
alkaline-earth metals
physical change
electromagnetic spectrum
nonmetal
13. One wave per second.
hertz
Aufaub principle
plasma
Hund's rule
14. Any process that results in the formation of an ion.
direct proportion
ionization
atomic radius
period
15. A reaction in which one or more substances are converted into different substances
chemical reaction
mole
noble gas
metal
16. 1/2 the distance between the nuclei of identical atoms that are bonded together.
atomic radius
period
direct proportion
heterogeneous
17. Which way it spins. (up or down)
direct proportion
law of multiple proportions
chemical reaction
Spin Quantum Number
18. 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
photoelectric effect
pure substance
average atomic mass
law of multiple proportions
19. Number of waves that pass a given point in a specific time - usually one second.
hertz
line-emission spectrum
frequency
physical property
20. The energy change that occurs when an electron is acquired by a neutral atom.
gas
electron affinity
electronegativity
electromagnetic radiation
21. Emission of electrons from a metal when light shines on a metal.
element
photoelectric effect
halogens
electron configuration
22. An explanation of how phenomena occur and how data or events are related
atomic mass unit
mixture
law of conservation of mass
model
23. The Group 18 elements (helium - neon - argon - krypton - xenon - and radon)
accuracy
liquid
noble gas
ionization energy
24. Numbers written in the form M ×10 number greater than or equal to 1 but less than 10 and n is a whole number
liquid
scientific notation n where the factor M is a scientific notation
isotopes
law of definite proportions
25. The closeness of measurements to the correct or accepted value of the quantity measured
model
wavelength
matter
accuracy
26. Having a uniform composition throughout
periodic law
element
homogeneous
matter
27. A high-temperature physical state of matter in which atoms lose their electrons
plasma
photon
lanthanide
Avogadro's number
28. Distance between corresponding points on adjacent waves.
quantity
Pauli exclusion principle
SI (Le Système International d'Unités
wavelength
29. The arrangement of electrons in an atom
law of multiple proportions
hertz
mass number
electron configuration
30. A unit that is a combination of SI base units
nuclear force
element
derived unit
compound
31. The state of matter in which a substance has neither definite volume nor definite shape
gas
chemical change
matter
photon
32. The elements of group 17 of the periodic table.
Avogadro's number
nonmetal
nuclide
halogens
33. A logical approach to solving problems by observing and collecting data - formulating hypotheses - testing hypotheses - and formulating theories that are supported by data
scientific method
Magnetic Quantum Number
SI (Le Système International d'Unités
alkaline-earth metals
34. State in which an atom has a higher potential energy than it has in it's ground state.
scientific method
SI (Le Système International d'Unités
excited state
atomic number
35. The emission of a continuous range of frequencies of electromagnetic radiation.
continuous spectrum
chemical change
gas
Magnetic Quantum Number
36. A pure substance made of only one kind of atom
element
conversion factor
nuclide
liquid
37. Combination of all the forms of electromagnetic radiation.
law of multiple proportions
change of state
wavelength
electromagnetic spectrum
38. The amount of a substance that contains as many particles as there areatoms in exactly 12 g of carbon-12
group
mole
mass number
gas
39. An element that has some characteristics of metals and some characteristics of nonmetals
isotopes
homogeneous
metalloid
inverse proportion
40. Not having a uniform composition throughout
period
ion
theory
heterogeneous
41. A measure of the gravitational pull on matter
weight
alkaline-earth metals
photoelectric effect
Magnetic Quantum Number
42. The elements of group 1 of the periodic table.
product
transition metals
alkali metals
Heisenberg Uncertainty Principle
43. The state of matter in which the substance has a definite volume but an indefinite shape
family
gas
liquid
metalloid
44. The p-block elements together with the s-block elements.
ionization energy
main-group elements
nonmetal
electronegativity
45. Atoms of the same element that have different masses
photon
isotopes
alkaline-earth metals
nonmetal
46. 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
matter
reactant
law of definite proportions
noble gas
47. A form of energy that exhibits wavelike behavior as it travels through space (3.00x108 m/s)
electromagnetic radiation
chemical
theory
Angular Momentum Quantum Number
48. The ratio of mass to volume or mass divided by volume
chemical property
accuracy
density
wavelength
49. Minimum quantity of energy that can be lost or gained by an atom.
Quantum Numbers
quantum
heterogeneous
hertz
50. Anything that has mass and takes up space
matter
density
nuclear force
nuclide
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