Unit C Chemistry: The Nature of Matter PDF
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This document appears to be a chemistry worksheet or study guide covering the concept of matter, its different forms, such as elements and compounds, and explores different models of the atom, including Dalton, Thomson, Rutherford, and Bohr Rutherford. It also has some practice questions.
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Unit C Chemistry: The Nature of Matter idiMiM 1. Complete the following MATTER MIXTURES C.OM_'POll 1'>0.S ELEMENTS...
Unit C Chemistry: The Nature of Matter idiMiM 1. Complete the following MATTER MIXTURES C.OM_'POll 1'>0.S ELEMENTS l+OM.O ~"1~0VS HEn::-RD 6-~DJS 2. CX) c:P CX) i CX) 0 8 ~ 0 ce @ ~ ~ C? ~ GD9 0 ~ lemeri.vco mpound element, compound ! ~compound elem_ent~ po~ element, compound or mixture? orcn1xture7J or mixture? or mixture. or(fnixtur~ # of atoms? # of atoms? # of atoms? # of atoms? #of atoms? lO i 3 '- 7 # of molecules? S # of molecules? # of molecules? O # of molecules? # of molecules? 3 2 2 3.Draw the following models of the atom: · Dalton model Thomson model Rutherford model Bohr Rutherford model I , - - - , _,. ' \ 0 0 ·. ~ · ' :0; ' '..,..... - " ---./ I ~ 4. Explain the experiments done by: (a) Thomson (cathode ray tube) "Pl.Act D - ➔ ,, A,->D " - '' PLJ:rr€: o~ TOP -t-- ~crrr-01'1.. M'-1 $€-t-rr "DPWN 11:> ,. P'--"'flc... -n-\E-R~1=~ e-i l-'€:-'=tA71UG ,. -+ (b) Rutherford (Gold foil) Sl+OT ALPJt-A '' -+ " p,4-~,1cL..E-.s. A..,. c,:'-'D Ft>tL.... sc::ME- n:FlE~ Ur1...._ __... Q!'.\ Ne_...,_N-=- Sulphur _s_ Helium ~ Si s, ltco" K_--,-pakF-'...... 1':\...___ s.s-·1=u-'- Silver -/±.!;- Tin ~ Au 3 otd _ om Br__b- , n_,:_·__ _~_ 6. (a) Elements in the same group/family have _ _ _ _ _ _(:!imil~ /different) characteristics because they all have ~ different) valence electrons. (b) Elements in the same period have the (similar/ 1 eren characteristics because they all have (similar/ I erent valence electrons. 7 On the blank periodic table below, label the following: Group# I-VIII, Period# 1-7, Halo~'S, Alkal'i:Met-a ls, Alkaline Earth metals, noble ·gases, non-metals, one l}le~ql[~j~; mosfJiteactive metal, mos~ active non-metal, atomic radii, one trt ~5Yj, ~ etal, one lanthanide, one actinide 1 13, I"+ IS- It.. 2 JI. m: -r;r:. ,z:. m.. , /I....'...jt' ~............ , ~ - :.....·:·... '2. I 1-1 ' M ·,.,:_ fl;. ~ ,, ! ~1:>:rJ: INC.fe.€As.c.S 8. List four indicators that you are observing a chemical reaction : CHAl-'~E S COL..J?UR) f\.Jluc:.~lvC'1 Corro
