Chemistry Chapter 5 - Atomic structure

Tobey H.
26 words 72 learners

Learn words with Flashcards and other activities

Definition First
Print Flashcards

Other learning activities

Answer a few questions about each word. Use this to prep for your next quiz! Compete with other teams in real time to see who answers the most questions correctly! Test your spelling acumen. Read the definition, listen to the word and try spelling it!

Teaching tools

Create and assign quizzes to your students to test their vocabulary. Assign learning activities including Practice, Vocabulary Jams and Spelling Bees to your students, and monitor their progress in real-time.

Full list of words from this list:

words only definitions & notes
  1. alkali
    any of various water-soluble compounds capable of turning litmus blue and reacting with an acid to form a salt and water
  2. alkaline earth
    any of the bivalent metals of group II of the periodic table
  3. atom
    the smallest component of an element
  4. atomic mass
    the property of an atom that causes it to have weight
  5. atomic mass unit
    unit of mass for expressing masses of atoms or molecules
  6. atomic number
    quantity of protons in the nucleus of an atom of an element
  7. cathode ray
    a beam of electrons emitted by the cathode of an electrical discharge tube
  8. atomic theory
    a theory of the structure of the atom
  9. Dalton
    English chemist and physicist who formulated atomic theory and the law of partial pressures; gave the first description of red-green color blindness (1766-1844)
  10. electron
    an elementary particle with negative charge
  11. group
    any number of entities (members) considered as a unit
  12. halogen
    any of five related nonmetallic elements (fluorine or chlorine or bromine or iodine or astatine) that are all monovalent and readily form negative ions
  13. transition
    the act of passing from one state or place to the next
  14. isotope
    atom with same atomic number, different number of neutrons
  15. mass number
    the sum of the number of neutrons and protons in an atomic nucleus
  16. metal
    a chemical element or alloy that is usually a shiny solid
  17. metalloid
    a nonmetallic element that has some of the properties of metal
  18. neutron
    a subatomic particle with zero charge
  19. noble gas
    any of the chemically inert gaseous elements of the helium group in the periodic table
  20. nonmetal
    not resembling shiny, malleable, conductive elements
  21. nucleus
    a part of the cell responsible for growth and reproduction
  22. period
    an amount of time
  23. periodic law
    (chemistry) the principle that chemical properties of the elements are periodic functions of their atomic numbers
  24. periodic table
    arrangement of chemical elements according to atomic number
  25. proton
    a stable particle with positive charge
  26. representative
    serving to typify
Created on Thu Aug 11 22:36:23 EDT 2011 (updated Thu Aug 11 22:39:09 EDT 2011)

Sign up now (it’s free!)

Whether you’re a teacher or a learner, Vocabulary.com can put you or your class on the path to systematic vocabulary improvement.