Atom Review-nonmusical chairs

» 1. What is the atomic number of chlorine?

» 2. What is the atomic mass of sodium?

» 3. What is the mass number of the most common isotope of Silicon?

Answer: 17

Answer: 22.99 amu

Answer: 28

» 4. What term represents the protons + neutrons?

» 5. What term represents the number of protons?

» 6. What term represents the average mass of all of the isotopes?

Answer: mass number

Answer: atomic number

Answer: average atomic mass

» 7. The average atomic mass of Potassium is 39.10 amu. Which isotope, K-39, K-40, or K-41 is the most abundant?

» 8. When the mass number and atomic number is known, how does one find the number of neutrons?

» 9. What is the mass of a proton?

Answer: 39, because the atomic mass is closest to the most abundant isotope

Answer: mass number minus atomic number

Answer: 1 amu

» 10. What is the general formula for finding average atomic mass?

» 11. Boron has two naturally occurring isotopes, B-10 (19.8% abundant) and B-11 (80.2% abundant). Calculate the atomic mass.

» 12. Calculate the average atomic mass of Magnesium. Mg-24 (78.99%), Mg-25(10.00%), Mg-26 (11.01%).

Answer: % x mass + % x mass…..

Answer: 10.80 amu

Answer: 24.32 amu

» 13. For Zn-64 what is the number of atomic number, mass number, number of protons, neutrons, and electrons?

» 14. How many electrons has Mg2+ lost from its original number?

» 15. How many total electrons does Ca2+ have?

Answer: 30, 64, 30, 34, 30

Answer: 2

Answer: 18

» 16. An atom with the same number of protons, but a differing number of neutrons.

» 17. What do the superscript and subscript from 40

19K represent?

» 18. Which family on the periodic table is in the first group?

Answer: isotopes

Answer: 40 is the mass number and 19 is the atomic number

Answer: alkali metal

» 19. Which family of the periodic table has 8 valence electrons (except the top element)?

» 20. Which section of the periodic table has properties of both metals and nonmetals?

» 21. Which isotope of Neon has the same number of neutrons as it does protons?

Answer: noble gases

Answer: metalloids

Answer: Ne-20

» 22. An atom becomes a cation, or positive, when…

» 23. An atom becomes an anion, or negative, when…

» 24. How many protons and neutrons does H+ have?

Answer: it loses electrons

Answer: it gains electrons

Answer: 1 proton and 0 neutrons

» 25. Which scientist was a Greek philosopher and said that the atom was “indivisible”?

» 26. Which scientist worked under E. Rutherford and discovered neutrons?

» 27. Which scientist used the gold foil experiment and discovered that the atom was mostly empty space and the positive charges were located in the nucleus?

Answer: Democritus

Answer: Chadwick

Answer: Rutherford

» 28. Which scientist was an English schoolteacher and said that atoms of the same element were exactly the same and that atoms of different elements combined together to form compounds?

» 29. Which scientist thought that electrons were scattered around the atom like raisins in plum pudding?

» 30. Which scientist thought that electrons orbited the nucleus in energy levels?

Answer: Dalton

Answer: Thomson

Answer: Bohr

» 31. Which scientist used cathode rays to discover a subatomic particle?

» 32. Which scientist used gold foil to discover subatomic particle placement?

» 33. The lowest allowable energy state of an atom is the…

Answer: Thomson

Answer: Rutherford

Answer: ground state

» 34. There are four types of orbitals, they are..

» 35. Which two families on the periodic table end in the configuration s1 or s2?

» 36. Which block of the periodic table are the transition metals?

Answer: s, p, d, f

Answer: alkali metals and alkaline earth metals

Answer: d

» 37. Which block of the periodic table are the lanthanide and actinide series’?

» 38. How many total electrons can be placed into the p orbitals?

» 39. How many total electrons can be placed into the d orbitals?

Answer: f

Answer: 6

Answer: 10

» 40. Which rule says that each electron occupies the lowest energy ?

» 41. Which rule says that a maximum of 2 electrons may occupy a single atomic orbital, but only if the electrons have opposite spins.

» 42. Which rule says that single electrons with the same spin must occupy each equal-energy orbital before additional electrons with opposite spins can occupy the same orbitals?

Answer: Aufbau principle

Answer: Hund’s Rule

Answer: Pauli Exclusion Principle

» 43. What is the electron configuration of Sodium?

» 44. What is the electron configuration of chlorine?

» 45. What is the electron configuration of Iron?

Answer: 1s22s22p63s1

Answer: 1s22s22p63s13p6

Answer: : 1s22s22p63s13p64s23d6

» 46. What is the noble gas configuration of Zirconium?

» 47. What is the noble gas configuration of Terbium?

» 48. What is the noble gas configuration of potassium?

Answer: [Kr] 5s24d2

Answer:[Xe] 6s25d14f8

Answer: [Ar] 4s1