6D Unit 3: Periodic Table Mini-Assessment

You may use your colored Periodic Table and a calculator. No other resources can be used. If you need a calculator, please get one from the teacher table now. Section 1: Classification of Matter 1) Matter is classified based on whether the particles in the substance are different or identical. Pick the option(s) below that is an example of a substance with identical particles. Choose all that apply. 2) Like in the answer choices above, substances with identical particles can be either: Choose all that apply. Mixtures Elements Solutions Compounds Colloids 3) A solution is an example of: a heterogenous mixture that separates into layers over time and scatters light a heterogenous mixture that does not separate into layers over time and does not scatter light a homogenous mixture that separates into layers over time and scatters light a homogenous mixture that does not separate into layers over time and does not scatter light 4) A sand storm kicks up in the desert. During the storm, the air is full of sand particles and it's hard to see. After the storm ends, the sand falls back to the ground. What kind of mixture is the air during a sand storm? Solution Colloid Suspension 5) In which type of mixture does light always scatter? (Tyndall Effect) Solution Colloid Suspension Section 2: Percent Yield 6) What does percent yield help us determine? How many times out of 100 we need to stop at a yield sign How many products our experiment should be able to make How effective an experiment was How often an experiment is able to produce the desired product 7) How can you differentiate between actual yield and theoretical yield? Actual yield is how much actual product is made in an experiment; theoretical is how much you could hypothetically make in a perfect environment Actual yield is how much product you actually got when conducting an experiment; theoretical is how much you would probably get Actual yield is the quantity of product you calculate you will obtain from an experiment; theoretical is the quantity you receive after doing the experiment 8) What is the formula for calculating percent yield? Percent Yield = Actual Yield x Theoretical Yield x 100 Percent Yield = Actual Yield / Theoretical Yield x 100 Percent Yield = Theoretical Yield / Actual Yield x 100 Percent Yield = Theoretical Yield x Actual Yield x 100 9) True or False. It is possible to get 100% yield in an experiment. True False Yes 10) Jowakitoe planted 10 potatoe seeds, one of which he named "Pot-a-Toe". That one was his favorite one.2 months go by, and he notices that his buddy Pot-a-Toe didn't sprout! He looked around and noticed that the ground around Pot-a-Toe had poor drainage, and all the rainwater that had come by the area the last couple months must've drowned some of his potatoe buddies. He counted that only 2 of them sprouted.What was his percent yield? 5% 10% 20% 25% Section 3: Periodic Table Anatomy 11-13) Fill in the table for the element iodine. For the worksheet to mark your answer correct, you must notate the "family" by the SINGULAR, ONE-WORD form of the family as it is stated on your colored Periodic Table.You must notate the "group" and "period" with a SINGLE, arabic numeral. (ie. 1, 2, 3, 4, 5, etc.) Do not write "one, two, three" etc. Family Group Period Halogen 7 5 14) Why are elements 57-71 and 89-103 seemingly missing from the Periodic Table? We haven't discovered those elements yet, so they're using a placeholder until we discover them They're located in the extended version of the Periodic Table, which can be found on Google They're radioactive, so we don't need to put them in the Periodic Table They're located at the bottom of the Periodic Table, where the Lanthanides and Actinides are 15) How is the Periodic Table organized? Choose all that apply. By atomic number By atomic mass By the number of neutrons By the number of protons By the number of electrons Section 4: Subatomic Particles 16-18) Fill in the table for each subatomic particle. Proton Neutron Electron Charge? positive neutral negative Mass? 1 amu (atomic mass unit) 1 amu (atomic mass unit) 0 amu (negligible) Location in Atom? nucleus nucleus electron cloud 19) What does the atomic mass or mass number represent? Choose all that apply. Total mass of an atom of the element, which includes the protons and electrons Total mass of an atom of the element, which includes the protons and neutrons The average of all weighted isotopes of an element The total number of neutrons in an atom of an element 20) Fill in the table to explain how you would "count" the number of subatomic particles are within an atom. How to determine number of protons: How to determine number of neutrons: How to determine number of electrons: It's the same as the atomic number Atomic mass - atomic number It's the same as the atomic number (only when the atom is neutral) Section 5: Isotopes 21-22) Fill in the table for a neutral atom of iodine. The first isotope is iodine's most commonly occurring isotope. The second is another isotope of iodine. For the worksheet to mark your answer correct, you must notate all answers by arabic numerals. Do not write "one, two, three" etc. Isotope Atomic Number Mass Number Number of Protons Number of Neutrons Number of Electrons Iodine-127 53 127 53 74 53 Iodine-131 53 131 53 78 53 23) How might an isotope of iodine with 70 neutrons be written? Choose all that apply. iodine-81 iodine-123 iodine-53 I-53 12353 I 53123 I 5370 I 7053 I 24) Fill out the chart to explain what would happen if: You change the number of protons in an atom? You change the number of neutrons in an atom? You change the number of electrons in an atom? You get a completely different element You get an isotope You get something else that we haven't learned yet... 25) How would you define an atom? Bonus question: What is Ms. Tan's favorite element? Technically, she has 3 favorites. You can name any of the 3 for a bonus point :)