e] Practice Test- Measurement, Sig Fig, Scientific Notation, & The AtomElectrons13. What were the 4 ancient elements that Empedocles described?14. List the six ideas of John Dalton's model of the atom Practice Test - Measurement, Sig Fig, Scientific Notation, & The Atom5. Complete this chart:MassElectric ChargeLocationElectronProtonNeutron16. What is the atomic number of the following elements:ElementAtomic NumberOxygenMagnesiumDysprosiumPlutonium

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Answered: 13. What were the 4 ancient elements…

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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2. Which atom has six valence electrons? a. lithium d. neon b. carbon e. boron c. sulfur 3. Which atom has a nucleus that contains 20 protons? a. lithium b. krypton c. carbon 5. Which of the following atoms has the largest radius? a. lithium b. lead c. cesium d. fluorine UNIT 1 a. helium b.xenon d. calcium e. potassium e. carbon 6. Which of the following atoms has the highest first ionization energy? c. potassium d. hydrogen e. carbon
What famous scientist proposed Dalton's Atomic Theory? O Bill Nye O Carl Sagan O Johann Conrad Dippel O Doctor Who O John Dalton
6. Who discovered the nucleus of the atom? A. Dalton B. Rutherford C. Millikan D. Thomson 7. The five spheres below represent Se, Se2-, O, H, and S, not necessarily in that order. 37 pm 72 pm 100 pm 114 pm 196 pm Which answer correctly orders all five species from smallest to largest? A. O х"(g) + e B. X*(g) → X*(aq) С. Х(g) + e -> X (з) D. X*(g) + e→ X(g) 9. Which of the following compounds are insoluble? A. Pbl2 В. CaSO4 С. CSCI D. Nazs E. Both A and B 10. Assign oxidation numbers to the chlorine atom in each of the following compounds: Cl2, HCI, ClO3, CIF3, PCI3 А. О, —1, +6, +3, -1 В. О, —1, +5, +3, -3 С. 0, —1, +5, +3, —1 D. 0, -1, +3, +3, –1
Explain Rutherford’s Gold Foil experiment and what it did for the development of the atomic model.
Democritus and Dalton both proposed that matter consists of atoms. How did their approaches to reaching that conclusion differ?
What did the scientists who are credited with discovering the proton and neutron have in common?
All parts of Dalton's theory on atoms is still accepted today. True O False
What are Dalton’s Theories? Which ones have been disproven and which ones are still true?
18
2. The most common isotope of carbon has a mass of 12. Carbon has an atomic number of 6.A. How many protons are in an atom of carbon? 17B. How many neutrons are in an atom of carbon?C. How many electrons are in an atom of carbon?D. Another isotope of carbon has a mass of 14. How many protons, neutrons, and electrons are in this isotope?
Which of the following is not one of the four postulates of the atomic theory? Group of answer choices A. Atoms are divisible. B. Atoms of the same element have the same properties. C. Chemical compounds are composed of atoms of different elements D. Chemical reactions are merely rearrangements of the atoms
Which of the following statements is TRUE, and why? A. Anions are usually larger than their corresponding atoms. B. A neutral atom contains the same number of protons and neutrons. C. Protons and electrons contribute equally to the mass of the atom.

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13. What were the 4 ancient elements that Empedocles described? 14. List the six ideas of John Dalton's model of the atom