ITISScience Department2nd Prep.1st TermQuestions on Lesson (1)01:- Complete the following:-1-Scientists classified elements in order toa relationship between elemenets and......and.their study and to find........their...properties .2-The most important attempts to classify elementsareand.tables3- Mendeleev arranged the elements ascendingly accordingtowhile mosely arranged them ascendingly according••..to.... .horizontal periods4- The modern periodic table consists ofand.vertical groups... .side of the periodic5- Elements of p-block are located on the.table.6- The atomic number of an element located in group (1A) and period (3)

Nature consists of a large number of elements. Scientists study their properties and while studying…

Answered: me following:- 1-Scientists classified…

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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Be sure to answer all parts. Identify the highlighted element in the periodic table and give its [1] element name and symbol; [2] group number; [3] period; [4] classification (i.e., main group element, transition metal, or inner transition metal). ook Main Keypad v Ask Print (1] Element (symbol) ). References 12) Group number (select) [3] Period 14] Classification (select) P Type here to search Prey 11 of 26
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Pls help ASAP AND PLS DO ALL ASKED QUESTIONS I HUMBLY REQUEST
esc - a . 10 11 12 = 13 14 15 B B 16 17 18 19 20 21 22 23 24 26 27 28 29 30 31 32 33 or 25 :0 Y F1 1 F2 X N> A F5 8 T H|V R E 5 You will use the known periodic trends to compare properties for elements indicate with letters in this periodic table. Consider their relative positions for these questions. Your answers will be letters as indicated above, not the actual element symbol they would coordinate to. (Do not use a real periodic to answer this question.) • Which element would be expected to have the lowest first ionization energy? A • Which labeled element in the fourth period of the chart above has the highest quantity electron affinity energy? A MacBook Air DOO 80 DOO DII DD F3 F4 F6 F8 F9 F10 F7 A LIQ A 0 F11
Who noticed that elements with similar properties could be grouped in intervals, which repeated every eight elements?a.) Johann Dobereiner b.) John Newlands c.) Antoine Laurent de Lavoisier d.) Lothar Meyer
Using the golf ball analogy, where the golf ball represents the nucleus of a hydrogen atom, what would be the ratio of the diameter of the nucleus to that of the complete atom? 1. 2. What was the key piece of evidence used by Rutherford to claim that an aton was mostly empty space? Which wavelength is the most energetic? Which is the least energetic? 3. 4. What do you notice about the colour of the light produced from the hydrogen tube? 5. If the tube produced all frequencies of visible light, what colour would the light be? 6. The scale is in nanometers (nm). How many nanometers in a meter? 7. Record (in chart form) the wavelength of each of the coloured lines in the hydrogen emission spectrum 8. Which gas most closely matches the emission spectrum? Explain how you came to this conclusion. 9. What is the relationship between the number of levels and the number of lines? If an atom had 7 energy levels (n =1 to n = 7) how many spectral lines would we expect to be able to see? How many…
Which drawing best represents the atomic model? A, B, C or D?
V Student Portal - Seattle X C Clever | Portal E Class Score Detail 9 Schoology N Chemistry A-Period 6 G pel- Gongle Sach A districtims.seattleschools.org/common-assessment-delivery/start/4732295265?action3Donresume&submissionld=D443170581 (From Experiments: Atom.2.1, Atom.2.2) Periodic Table of Elements He Eliminate Cho u Be BcINolF BIC No Na Mg Al si P s cAr K Ca Sc TI vaMn Fe Co NICu Zn Ga Ge As Se Br Kr Rb SrY Z Nb Mo Tc Ru Rh Pd Ag Cd in Sn Sb Te Xe Cs Ba La H Ta w Re Os Ir P Au Hg T PbBi Po Al An Fr Ra Ac RI Db Sg Bh Hs Mt Ds Ce Pr Nd Pm Sm Eu Gd Tb Dy Ho Er Tm YD Lu Th Pa U Np Pu Am Cm Bk Cr Es Fm Md No u Beryllium (Be) is in the box on the periodic table shown. Lithium (Li), boron (B), and carbon (C) are all elements in the same period (row) as beryllium. Which of the statements below is true about the elements in this period? O The size (diameter) of the atoms decreases as you move to the right. O Nitrogen and Oxygen have the same number of protons O The atomic mass decreases…
Define the terms period and group as they relate to the periodic table. Then, (ii) write an atomic symbol for any element that is in each of the following groups... a. noble gases b. alkali metals c. halogens d. transition metals

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