An IB Periodic Table is required Calculators should not be used for multiple choice questions! |
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1. Which of the following statements is FALSE?
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2. Which correctly represents the relative masses of the sub atomic particles?
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3. What is the atomic number of an atom which has 30 electrons and 35 neutrons?
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4. How many protons, neutrons and electrons are present in each atom of 39K?
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5. What is the correct symbol for the species which contains 13 protons, 14 neutrons and 10 electrons?
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6. Which of the following species are isoelectronic (contain the same number of electrons)?
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7. Which statement about two isotopes of an element is TRUE?
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8. A hypothetical element, X, consists of two isotopes, 50X and 54X. If 70% of the sample consists of 50X isotopes, what is the relative atomic mass of X?
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9. The number of protons, electrons and neutrons in four species are given in the table below. Which two are isotopes of (neutral) atoms of the same element?
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10. What is the relative atomic mass of the element with the mass spectrum shown below? |
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