Chemistry: Structure of Atoms

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Chemistry: Structure of Atoms Vol 1

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1. atm12-Which of the following is not correct

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2. atm19-An atom has a mass number of 40 and atomic number of 21. what is the number of neutrons

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3. atm30-The regions of the sub-shell of an atom where an electron is likely to be found is the

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4. atm10-Which of the following is not correct about hydrogen

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5. atm2-Which of the following are the components of an atom

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6. atm43-The valence electron of an atom are the electrons in

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7. atm15-Which of the following is not correct regarding the process of estimating the mass of an atom

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8. atm44-how many electrons can the f subshell hold

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9. atm40-If an atom has 16 protons, the last electron will be located in which shell

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10. atm46-Which of the following has the largest number of electrons in the outermost shell

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11. atm9-The mass number (A) is

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12. atm23-An element has two isotopes X-20 and X-22 . The isotopes exist in ratio 3:1. what is the relative atomic number of the element

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13. atm24-Find the relative atomic mass of the element with isotopes X-16, X-17, and X-18 existing in a ratio of 3:1:1

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14. atm4-Which of the following form the nucleus of an atom

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15. atm49-Which of the following is not true about the atomic theory ( Dalton’s atomic theory)

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16. atm42-when filling the electronic configuration of an atom according to energy level, which of the following is not correct

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17. atm41-Which of the following is not correct about how to write the electronic configuration of an atom

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18. atm7-Which of the following is not correct

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19. atm34-the f subshell of an atom has how many orbitals

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20. atm26-Find the relative atomic mass of the element with isotopes X-10, and X-11, with relative abundance of 70% and 30% respectively.

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21. atm3-Which of the following form the shell of atoms

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22. atm20-An atom has a mass number of 40 and atomic number of 21. what is the number of electrons

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23. atm47-A atom in which the valence shell is completely filled with electron is called

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24. atm38-If an atom has 3 electrons the first electron will be located in which shell

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25. atm14-the current standard for estimating the mass of an atom is relative to the mass of

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26. atm50-An atom is electrically neutral because

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27. atm11-An atom has a mass number of 27 and and atomic number of 17. which of the following is not correct

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28. atm32-The p subshell of an atom has how many orbitals

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29. atm31-The s-subshell has how many orbitals

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30. atm5-Which of the following are the three subatomic particles of an atom

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31. atm13-the current standard for estimating the mass of an atom is relative to the mass of

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32. atm27-When the vapor of a naturally occuring element was passed into a mass spectrometer. The spectrometer showed two peaks. Which of the following is correct

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33. atm21-An atom as atomic number of 8 and 7 neutrons. What is the mass number

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34. atm17-Which of the following is used to measure the atomic mass unit of an atom

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35. atm6-Which of the following is not correct.

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36. atm45-how many electrons can the d subshell hold

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37. atm1-Which of the following is not correct about dalton's atomic theory

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38. atm35-What is the maximum number of electrons each orbital of an atom can hold

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39. atm36-What is the maximum number of electrons that the 4th shell of an atom can hold

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40. atm8-Which of the following is not correct

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41. atm28-Which of the following is not correct

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42. atm22-An atom as atomic number of 8 and 7 neutrons. What is the number of electrons

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43. atm48-The number of atoms in one molecule of an element is the

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44. atm37-The order in which the electrons enter the orbital in the various energy sublevel of an atom is described by

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45. atm33-the d subshell of an atom has how many orbitals

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46. atm18-Which of the following is not correct

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47. atm29-Which of the following is not correct

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48. atm25-An element has two isotopes X-23 and X-24 . The isotopes exist in ratio 3:1. what is the relative atomic number of the element

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49. atm16-Which of the following relative atomic mas units is not correct

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50. atm39-if an atom has 12 electrons the last electron will be located in which shell

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