CHEM: Revision: Can you "read" the Periodic Table?
  • 1. What is the mass number (rounded to the nearest whole number) of the element with the symbol "V"?
A) 23
B) 60
C) 50
D) 51
  • 2. How many valence electrons does Chlorine have?
A) 7
B) 17
C) 3
D) 1
  • 3. What is the group number for Rhodium?
A) 103
B) 5
C) 9
D) 45
  • 4. What is the period number for Arsenic?
A) 3
B) 15
C) 4
D) 33
  • 5. Neon, Argon, and Krypton belong to which group?
A) Transition Metals
B) Noble Gases
C) Halogens
D) Alkaline Earth Metals
E) Alkali Metals
  • 6. What is the atomic number of Nitrogen?
A) 14.007
B) 2
C) 14
D) 7
  • 7. How many electrons does Barium have?
A) 137
B) 56
C) 2
D) 6
  • 8. How many energy levels does Cesium have?
A) 6
B) 1
C) 2
D) 7
  • 9. Which of the following is true?
A) Tellurium is a solid metalloid.
B) Phosphorus is a non-metal gas.
C) Chlorine is a liquid non-metal.
D) Mercury is a solid metal.
  • 10. How many protons does Molybdenum have?
A) 5
B) 6
C) 42
D) 96
  • 11. How many neutrons does Lithium have?
A) 4
B) 3
C) 2
D) 7
  • 12. Which of the following correctly matches the subatomic particle with its charge?
A) proton/+, neutron/-, electron/no charge
B) proton/+, electron/-, neutron/uncharged
C) proton/-, electron/+, neutron/no charge
D) proton/+, electron/neutral, neutron/-
  • 13. Which two particles are located in the atom's nucleus?
A) protons and electrons
B) protons and neutrons
C) neutrons and electrons
D) protons and orbits
  • 14. Based on their position on the periodic table, which pair of elements has similar chemical properties?
A) Phosphorus and Silicon
B) Carbon and Boron
C) Argon and Krypton
D) Mercury and Thallium
  • 15. Which of the following is still true today?
A) atoms are tiny solid spheres
B) the atom is mostly empty space
C) electrons orbit totally randomly around the nucleus
D) the atom is a positively charged sphere with electrons embedded in it
  • 16. Elements that are in the same __________ have similar chemical properties?
A) nucleus
B) group
C) region
D) period
  • 17. Based on its position on the periodic table, Sodium has similar properties to which element?
A) Lithium
B) Beryllium
C) Chlorine
D) Magnesium
  • 18. For any atom that is neutral, the number of electrons is equal to the -
A) group number
B) number of neutrons
C) period number
D) number of protons
  • 19. For any atom, the number of neutrons is -
A) the same as the number of electrons
B) the mass number minus the atomic number
C) greater than the mass number
D) the same as the number of energy levels
  • 20. To determine the number of valence electrons of an element, you must first figure out its -
A) Period Number
B) Group Number
C) Number of Neutrons
D) State of Matter
  • 21. An atom has 7 protons. What is the element?
A) Manganese
B) Francium
C) Nitrogen
D) Carbon
  • 22. Is it possible for Carbon to have 7 protons?
A) No, every single Carbon atom has exactly 6 protons. An atom's atomic number gives it its identity.
B) Yes, some Carbon atoms have 6 protons, some have 7 protons.
  • 23. How is an ion created?
A) by adding protons
B) by adding electrons
C) By adding or losing electrons
D) by losing protons
  • 24. How is a cation created?
A) by adding electrons
B) by losing electrons
C) by losing protons
D) by adding protons
  • 25. How is an anion created?
A) by adding electrons
B) by losing protons
C) by losing electrons
D) by adding protons
  • 26. How is an isotope created?
A) by adding protons
B) by adding neutrons
C) by adding or losing neutrons
D) by adding electrons
  • 27. The number of neutrons in an atom is the...?
A) difference between the atomic and mass number
B) mass number divided by 2
C) same as the atomic number
D) same as the mass number
  • 28. The number of electrons in a neutral atom is ?
A) the same as the number of neutrons
B) the same as the atomic number
C) the same as the mass number
D) the difference between the mass and atomic number
  • 29. Which of the following pairs are most similar in chemical behaviour?
A) Na and Li
B) Mg and F
C) Hg and C
D) B and O
  • 30. Which of the following are most similar in electronegativity?
A) F and At
B) Ba and Ra
C) Mg and Cl
D) Li and Po
  • 31. The most reactive element belongs to which family?
A) The noble gases
B) The halogens
C) The alkali earth metals
D) The alkali metals
E) The transition metals
  • 32. The most electronegative element belongs to which family?
A) The transition metals
B) The alkali metals
C) The halogens
D) The noble gases
  • 33. The least reactive elements are all found in which group?
A) 18
B) 4
C) 1
D) 17
E) 8
  • 34. What does the period number tell us?
A) how reactive they are
B) how many protons there are
C) how many electrons there are
D) how many electron levels there are
  • 35. What does the group number tell us?
A) how many electrons the atom has
B) the number of neutrons
C) how many valence electrons the atom has
D) the number of protons
  • 36. Which element is a metal but also a liquid?
A) Mercury
B) Fluorine
C) Iron
D) Sodium
E) Silver
  • 37. Which element from this list is the smallest?
A) Au
B) Li
C) H
D) Al
E) F
  • 38. Which element from this list is the most reactive?
A) I
B) Li
C) Cs
D) Mg
E) Al
  • 39. What makes one element different from another element?
A) the number of electrons
B) the number of neutrons
C) the number of protons
  • 40. Which scientist is given credit for developing the Periodic Table?
A) Newton
B) Dalton
C) Bohr
D) Lewis
E) Mendeleev
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