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REMOVED QQ ABOUT METAL ABUNDANCE. IN MASTER FOLDER THIS QQ IS PRESENT CHEMISTRY STUDY GUIDE FOR THE TEST ATOMIC STRUCTURE 1. List the statements of Dalton’s atomic theory _____________________________________________________________________ __________________________________________________________________________________________________________ __________________________________________________________________________________________________________ 2. What can scientists now add to the Dalton’s theory. 3. All atoms of the same element have the same number of ___________________: 4. 5. Protons _________________-- charge; mass _________________ located __________________ electrons_________________-- charge; mass _________________ located __________________ neutrons _________________-- charge; mass _________________ located __________________ Which subatomic particle determines an element? 6. Which subatomic particle determines chemical properties of an element? 7. The nucleus of an atom is ______________-- charged and has _________________- density 8. How to calculate the number of protons, neutrons and electrons 9. How to calculate atomic mass______________________________________ 10. Atomic mass is measured in ____________________________11. How do the isotopes of an element differ?_________________________________ How are they alike? ______________________________________________ 12. The number 37 in the name chlorine-37 represents __________________ 13. What does each number on the shorthand notation indicate? 24 E 12 14. Common physical properties of metals? KNOW VOCABULARY!!!! PROBLEMS 1. Which of these statements is not true? Atoms of the same element can have different masses. Atoms of isotopes of an element have different number of protons The nucleus of an atom has positive charge. Atoms are mostly empty space. 2. How do the isotopes hydrogen-2 and hydrogen-3 differ? 3. If F is a symbol for an element, which two of the following symbols represent isotopes of the same element? 1) 24 F 2) 13 4. 24 F 3) 14 25 F 4) 13 25 F 12 Which symbol correctly represents an element (D) whose atoms contain 15 protons and 20 neutrons ? 20 15 D 15 20 D 35 15 D 15 35 D
