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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. Emission of electrons from a metal when light shines on a metal.
photoelectric effect
reactant
periodic table
continuous spectrum
2. Having a uniform composition throughout
hypothesis
Magnetic Quantum Number
metal
homogeneous
3. An element that is a good conductor of heat and electricity
metal
chemical change
matter
hertz
4. The ratio of mass to volume or mass divided by volume
density
electromagnetic radiation
conversion factor
scientific method
5. A measure of the gravitational pull on matter
physical change
Magnetic Quantum Number
weight
metal
6. A 3D region around the nucleus that indicates the probable location of an electron.
Spin Quantum Number
element
reactant
orbital
7. A blend of two or more kinds of matter - each of which retains its own identity and properties
conversion factor
density
mixture
lanthanide
8. An element that is a poor conductor of heat and electricity
nonmetal
Aufaub principle
photon
ionization
9. Atoms of the same element that have different masses
nonmetal
chemical reaction
electromagnetic spectrum
isotopes
10. A specific portion of matter in a given region of space that has been selected for study during an experiment or observation
law of multiple proportions
Principle Quantum Number
chemistry
system
11. The suborbitals of an atom. (S - P - D - F)
weight
Angular Momentum Quantum Number
significant figure
ionization
12. The study of the composition - structure - and properties of matter and the changes it undergoes
theory
Avogadro's number
derived unit
chemistry
13. 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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14. 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
electron configuration
frequency
ground state
law of multiple proportions
15. A substance that is formed by a chemical change
product
element
extensive property
orbital
16. A pure substance made of only one kind of atom
cation
density
element
physical change
17. Number of waves that pass a given point in a specific time - usually one second.
ionization
hypothesis
frequency
change of state
18. A short-range proton-neutron - proton-proton - or neutrorce that holds the nuclear particles together
nuclear force
alkali metals
atomic radius
extensive property
19. Two quantities that give a constant value when one is divided by the other
direct proportion
mass number
inverse proportion
wavelength
20. The elements of group 2 of the periodic table.
alkaline-earth metals
mixture
alkali metals
cation
21. The smallest unit of an element that maintains the properties of that element
cation
atom
theory
line-emission spectrum
22. Minimum quantity of energy that can be lost or gained by an atom.
quantum
chemical
chemical reaction
inverse proportion
23. A horizontal row of elements in the periodic table
period
Quantum Theory
theory
law of conservation of mass
24. An electron occupies the lowest-energy orbital that can receive it
molar mass
ion
Aufaub principle
hertz
25. 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
Quantum Numbers
law of conservation of mass
hertz
26. 6.022 1367 × 1023; the number of particles in exactly onemole of a pure substance
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27. The ability of a substance to undergo a change that transforms it into a different substance
continuous spectrum
photoelectric effect
accuracy
chemical property
28. The total number of protons and neutrons in the nucleus of an isotope
electron affinity
Heisenberg Uncertainty Principle
mass number
atomic number
29. A unit that is a combination of SI base units
mole
anion
derived unit
electromagnetic spectrum
30. The emission of a continuous range of frequencies of electromagnetic radiation.
period
Quantum Theory
continuous spectrum
weight
31. One wave per second.
scientific notation n where the factor M is a scientific notation
hertz
transition metals
Spin Quantum Number
32. A substance that is made from the atoms of two or more elements that are chemically bonded
halogens
electron configuration
atom
compound
33. The amount of a substance that contains as many particles as there areatoms in exactly 12 g of carbon-12
theory
metal
density
mole
34. States that it is impossible to determine simultaneously both the position and velocity of an electron or any other particle.
nuclear force
Heisenberg Uncertainty Principle
conversion factor
weight
35. The arrangement of electrons in an atom
mole
continuous spectrum
metalloid
electron configuration
36. Which suborbital. (Py - Px - Pz)
intensive property
Magnetic Quantum Number
nuclide
chemistry
37. Something that has magnitude - size - or amount
element
molar mass
chemical property
quantity
38. A negative ion.
electron configuration
solid
anion
reactant
39. 1/2 the distance between the nuclei of identical atoms that are bonded together.
photon
Quantum Theory
isotopes
atomic radius
40. The total amount of energy level an atom has.
Principle Quantum Number
continuous spectrum
SI (Le Système International d'Unités
Avogadro's number
41. The amount of space occupied by an object
continuous spectrum
volume
ground state
inverse proportion
42. The state of matter in which the substance has a definite volume but an indefinite shape
liquid
period
SI (Le Système International d'Unités
conversion factor
43. 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
gas
group
pure substance
isotopes
44. A form of energy that exhibits wavelike behavior as it travels through space (3.00x108 m/s)
continuous spectrum
electromagnetic radiation
Principle Quantum Number
change of state
45. The energy change that occurs when an electron is acquired by a neutral atom.
electron affinity
excited state
derived unit
family
46. An element that has some characteristics of metals and some characteristics of nonmetals
metalloid
electronegativity
model
alkaline-earth metals
47. A high-temperature physical state of matter in which atoms lose their electrons
plasma
photoelectric effect
wavelength
chemical change
48. The physical and chemical properties of the elements are periodic functions of their atomic numbers.
halogens
system
Avogadro's number
periodic law
49. A logical approach to solving problems by observing and collecting data - formulating hypotheses - testing hypotheses - and formulating theories that are supported by data
electron affinity
Hund's rule
pure substance
scientific method
50. An explanation of how phenomena occur and how data or events are related
solid
homogeneous
SI (Le Système International d'Unités
model