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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 3D region around the nucleus that indicates the probable location of an electron.
orbital
alkali metals
atom
period
2. The electrons available to be lost - gained - or shared in the formation of chemical compounds.
theory
scientific notation n where the factor M is a scientific notation
atomic number
valence electrons
3. Having a uniform composition throughout
plasma
volume
homogeneous
chemical
4. A horizontal row of elements in the periodic table
atom
period
family
liquid
5. The d-block elements are metals with typical metallic properties.
weight
transition metals
atomic mass unit
frequency
6. A substance that reacts in a chemical change
noble gas
reactant
physical property
heterogeneous
7. A physical change of a substance from one state to another
group
change of state
nuclear force
alkaline-earth metals
8. The ratio of mass to volume or mass divided by volume
gas
density
model
frequency
9. A ratio derived from the equality between two different units that can be used to convert from one unit to the other
conversion factor
pure substance
extensive property
law of conservation of mass
10. A value calculated by subtracting the experimental value from the accepted value - dividing the difference by the accepted value - and then multiplying by 100
percent error
quantity
photoelectric effect
chemical change
11. Distance between corresponding points on adjacent waves.
ion
Aufaub principle
wavelength
homogeneous
12. 1/2 the distance between the nuclei of identical atoms that are bonded together.
electron affinity
extensive property
atomic radius
pure substance
13. A unit that is a combination of SI base units
inverse proportion
derived unit
orbital
accuracy
14. The physical and chemical properties of the elements are periodic functions of their atomic numbers.
Angular Momentum Quantum Number
periodic law
scientific notation n where the factor M is a scientific notation
conversion factor
15. A measure of the gravitational pull on matter
nuclear force
SI (Le Système International d'Unités
weight
electronegativity
16. Number of waves that pass a given point in a specific time - usually one second.
quantity
matter
frequency
Magnetic Quantum Number
17. An element that has some characteristics of metals and some characteristics of nonmetals
metalloid
pure substance
mole
ion
18. Describes mathematically the wave properties of electrons and other very small particles.
molar mass
derived unit
ion
Quantum Theory
19. No two electrons in the same atom can have the same set of four quantum numbers
Pauli exclusion principle
electromagnetic radiation
ion
atomic mass unit
20. The elements of group 2 of the periodic table.
orbital
scientific notation n where the factor M is a scientific notation
alkaline-earth metals
atom
21. A logical approach to solving problems by observing and collecting data - formulating hypotheses - testing hypotheses - and formulating theories that are supported by data
valence electrons
Quantum Numbers
scientific method
matter
22. A high-temperature physical state of matter in which atoms lose their electrons
anion
Magnetic Quantum Number
intensive property
plasma
23. Which way it spins. (up or down)
inverse proportion
alkaline-earth metals
Spin Quantum Number
derived unit
24. The elements of group 17 of the periodic table.
weight
significant figure
periodic law
halogens
25. Which suborbital. (Py - Px - Pz)
Magnetic Quantum Number
percent error
theory
intensive property
26. A short-range proton-neutron - proton-proton - or neutrorce that holds the nuclear particles together
chemical reaction
nuclear force
physical property
percent error
27. A blend of two or more kinds of matter - each of which retains its own identity and properties
quantity
periodic law
volume
mixture
28. A substance that is formed by a chemical change
product
period
excited state
Pauli exclusion principle
29. The smallest unit of an element that maintains the properties of that element
atom
chemical reaction
family
volume
30. Narrow beam of the emitted light was shined through a prism - it was separated into four specific colors of the visible spectrum.
reactant
alkaline-earth metals
Quantum Numbers
line-emission spectrum
31. A measure of the amount of matter
electron affinity
nonmetal
mass
physical property
32. 6.022 1367 × 1023; the number of particles in exactly onemole of a pure substance
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33. A broad generalization that explains a body of facts or phenomena
chemical change
scientific method
theory
atomic mass unit
34. The emission of a continuous range of frequencies of electromagnetic radiation.
continuous spectrum
Quantum Numbers
main-group elements
group
35. The ability of a substance to undergo a change that transforms it into a different substance
inverse proportion
theory
product
chemical property
36. An outer main energy level occupied - in most cases - by 8 electrons
quantum
ground state
noble gas configuration
physical property
37. The mass of one mole of a pure substance
molar mass
Quantum Numbers
Magnetic Quantum Number
ionization energy
38. Anything that has mass and takes up space
matter
chemical change
electronegativity
extensive property
39. The closeness of a set of measurements of the same quantity made in the same way
precision
ion
lanthanide
halogens
40. Two quantities that give a constant value when one is divided by the other
mixture
direct proportion
quantum
anion
41. The state of matter in which the substance has a definite volume but an indefinite shape
mixture
system
molar mass
liquid
42. State in which an atom has a higher potential energy than it has in it's ground state.
hertz
Spin Quantum Number
nuclear force
excited state
43. An explanation of how phenomena occur and how data or events are related
mass
significant figure
model
direct proportion
44. A form of energy that exhibits wavelike behavior as it travels through space (3.00x108 m/s)
transition metals
electromagnetic radiation
physical property
mixture
45. The energy change that occurs when an electron is acquired by a neutral atom.
atomic number
weight
halogens
electron affinity
46. A testable statement
atom
hypothesis
nuclide
extensive property
47. The total number of protons and neutrons in the nucleus of an isotope
plasma
mass number
atomic number
derived unit
48. One wave per second.
periodic table
hertz
chemical reaction
nonmetal
49. 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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50. The arrangement of electrons in an atom
photon
electron configuration
intensive property
photoelectric effect
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