Name: __________________________________________________Period: _________ Date: _____________________ Test for Elements, Compounds, Mixtures and the Periodic Table Write the letter of the correct vocabulary term on the line. Words may only be used once. _____1. Central region of the atom of neutrons a. b. c. d. e. _____3. Particle of an atom with the least mass f. molecule g. nucleus _____5. Charged atom that forms when the number of electrons and h. electron i. proton _____2. Atom that has the same number of protons but different number protons are not equal _____6. The sum of protons in the nucleus of an atom _____7. Substance that dissolves into another substance j. k. l. m. compound element mixture alloy atom neutron solubility metal nonmetal n. metalloid _____8. Ability of one substance to dissolve into another substance _____9. Elements that may or may not be shiny, conduct electricity or be malleable _____10. Elements that are shiny, conduct electricity and are ductile. _____11. Elements that are not shiny, don’t conduct thermal energy and are brittle _____12. The smallest particle a compound can be broken into and still have the same properties. _____13. The smallest particle an element can be broken into and still have the same properties. _____14. Type of mixture that appears to be a single substance, does not filter light and has tiny particles. _____15. Type of mixture that has large particles that can settle out. _____16. Type of mixture that has particles that are not heavy enough to settle out and scatters light. Determining Numbers of Protons, Neutrons and Electrons using the Periodic Table of Elements During the White Lab students took a sample of a mixture that contained sugar (melts under heat) and cornstarch (turns blue with iodine). The mixture sample that some students burned did not melt (not because of student error), how is that possible? How is a compound different from a mixture? a. Compounds have two or more components b. Each substance in a compound loses its characteristic properties c. Compounds are found in nature d. Solids, liquids and gases can form compounds When elements form mixtures, the elements a. Keep their original properties b. React to form a new substance with new properties c. Combine in a specific mass ratio d. Always change state Which of the following is NOT a reason that compounds are considered pure substances? a. They are composed of only one type of particle b. The particles are made of atoms of two or more elements that are chemically combined c. Different samples of any compound have the same elements in the same proportion d. They can be separated by physical methods Which identity statement below is correct? a. Milk is a compound, iron is an element, M&M’s are a mixture b. Salt is a compound, aluminum is an element, sugar is a mixture c. Vinegar is a compound, carbon is a element, paint is a mixture d. Air is a compound, oxygen is a element, carbon dioxide is a mixture Symbol Name Atomic Number Atomic Mass # of Protons # of Electrons # of Neutrons Metal/Metalloid or Nonmetal State S, G, L Nb Determine which of the following is a suspension, solution and colloid Fill in the tables that follow using a periodic table of elements. Isotope Properties Table Sulfur-32 In the space below draw flourine with 9 protons, 9 electrons 10 neutrons Sulfur-35 Number of Protons Number of Neutrons Atomic Number Mass Number Now draw an isotope and an ion of fluorine and explain why they are an isotope and an ion. We made ICE CREAM! Yay, hopefully it was delicious However it also related to science. Fill in the table below based on the science of ice cream. A summary of the process follows. SUMMARY OF MAKING ICE CREAM: A large bag contained ice and salt. A small bag had milk, vanilla and sugar. The small bag was sealed and placed inside the larger bag with the ice and salt. The two bags were shook until ice cream formed. Question What type of change does the NaCl cause when added to ice? Circle Correct Answer Physical Chemical Ice is solute, salt is solvent In salt water… Ice is solvent, salt is solute What type of mixture is salt water? What type of mixture is ice cream? Upon adding NaCl to H2O what happens to particles? The change that occurs from the milk, vanilla and sugar to ice cream is… Solution Colloid Suspension Solution Colloid Suspension Speed Up Slow Down Endothermic Exothermic Proof (doesn’t have to be complete sentences)