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Pre - AP Chemistry

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. Describes mathematically the wave properties of electrons and other very small particles.






2. A negative ion.






3. Something that has magnitude - size - or amount






4. A measure of the ability of an atom in a chemical compound to attract electrons from another atom in the compound.






5. The elements of group 2 of the periodic table.






6. A reaction in which one or more substances are converted into different substances






7. The elements of group 1 of the periodic table.






8. A short-range proton-neutron - proton-proton - or neutrorce that holds the nuclear particles together






9. The state of matter in which the substance has definite volume and definite shape






10. The 14 elements with the atomic numbers 90-103.






11. A measure of the gravitational pull on matter






12. An element that is a poor conductor of heat and electricity






13. 6.022 1367 × 1023; the number of particles in exactly onemole of a pure substance

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14. A horizontal row of elements in the periodic table






15. The d-block elements are metals with typical metallic properties.






16. The 14 elements with the atomic numbers 58-71.






17. Any substance that has a definite composition






18. The elements of group 17 of the periodic table.






19. A unit that is a combination of SI base units






20. The closeness of a set of measurements of the same quantity made in the same way






21. Two quantities that give a constant value when one is divided by the other






22. 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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23. 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.






24. The state of matter in which the substance has a definite volume but an indefinite shape






25. The measurement system accepted worldwide

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26. Numbers written in the form M ×10 number greater than or equal to 1 but less than 10 and n is a whole number






27. The energy change that occurs when an electron is acquired by a neutral atom.






28. Specify the properties of atomic orbitals and the properties of electrons in orbitals.






29. The total number of protons and neutrons in the nucleus of an isotope






30. The Group 18 elements (helium - neon - argon - krypton - xenon - and radon)






31. A change in a substance that does not involve a change in the identity of the substance






32. A vertical column of the periodic table






33. A testable statement






34. Anything that has mass and takes up space






35. A substance that is formed by a chemical change






36. The electrons available to be lost - gained - or shared in the formation of chemical compounds.






37. Any digit in a measurement that is known with certainty plus one final digit - which is somewhat uncertain or is estimated






38. The mass of one mole of a pure substance






39. Not having a uniform composition throughout






40. Which suborbital. (Py - Px - Pz)






41. The p-block elements together with the s-block elements.






42. A broad generalization that explains a body of facts or phenomena






43. A substance that is made from the atoms of two or more elements that are chemically bonded






44. A positive ion.






45. Mass is neither created nor destroyed duringordinary chemical or physical reactions






46. An electron occupies the lowest-energy orbital that can receive it






47. Minimum quantity of energy that can be lost or gained by an atom.






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






49. The smallest unit of an element that maintains the properties of that element






50. A ratio derived from the equality between two different units that can be used to convert from one unit to the other