Survey
* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
Bremsstrahlung wikipedia , lookup
Compact Muon Solenoid wikipedia , lookup
Introduction to quantum mechanics wikipedia , lookup
Theoretical and experimental justification for the Schrödinger equation wikipedia , lookup
Electron scattering wikipedia , lookup
Elementary particle wikipedia , lookup
Name ______________________________________ Date __________________ Class Period _________ Atoms, Elements, and Compound Test Study Guide I. Fill in the blank with the correct word. (molecule, equations, compound, element, subscript, coefficient, formula) 1. A pure substance made of only 1 type of atom is called _______________________________. 2. When 2 or more elements are combine to form a new substance it is a ______________________. 3. A __________________________ is used to represent a compound. 4.___________________________ are used to show a chemical change or reaction needed to make a compound. 5. The small number to the right of an element symbol that tells the number of atoms is called a __________________________________. 6. The large number to the left of the element symbol that tells the number of molecules is called a _________________________________. 7. A _____________________________ is the smallest piece of a compound. II. Short Answer. 8. In an equation/formula, what does a subscript tell you? 9. In an equation, what does a coefficient tell you? 10. Draw a molecule of water H2O below. 11. Label each example below as compound (C) or element (E). Then write the name of each element and how many atoms of each a. CO2 carbon 1, oxygen 2 compound e. CaCo2 ____________________ ________ b. Fe ___________________ ________ f. Al ______________________ ________ c. H20 __________________ ________ g. O2 ________________________________ d. HCl ___________________ ________ _________ h. AlCl3 _____________________ _________ 12. Label the atom model below. Use the following: proton, electron, neutron, nucleus, k shell, L shell, M shell, 2, 8, 18. + 0 13. Label the periodic table box below. Use the following: atomic number, element symbol, element name, atomic mass, protons and electrons, protons PLUS neutrons. Subatomic Particle 14. Proton 15.Neutron 16. Electron 5 B Boron 10.811 Location Charge Matching: Using the word box below, write the letter of the correct vocabulary word for each definition. 17) _______________The 3 smaller pieces found inside an atom. 18) 19) 20) _____________The building block of matter/smallest part of matter. _________________Pure substances made of only one type of atom. __________________The heavy center of the atom. 21) __________Energy levels around the nucleus where electrons are moving. 22) ____________holds 2 electrons 23) ____________The positive subatomic particle found in the nucleus. 24) _____holds 8 electrons. 25) _____The negative subatomic particle found outside the nucleus. 26) _____holds 18 electrons. 27) _____Number that tells the number of protons PLUS neutrons. 28) _____Letter(s) that chemically represent each element 29) _____Number that tells the number of protons and electrons. A. Atomic number B. Atomic mass C. Element symbol D. K shell E. L shell F. Proton G. M shell H. Electron I. Nucleus J. Shells K. Atom L. Element M. Subatomic particles Use the chart above to answer the following questions. 30. Which element has more protons – Al or Li? 31. What would be the correct way to write the element symbol for aluminum # 13-AL or Al? Why? 32. What subatomic particle determines the type of element? 32. How many neutrons does Sodium (Na) have? Show your math. 33. If an element loses an electron does it become a new element?