front 1
| back 1 b. magnesium |
front 2 2. the modern periodic table is arranged in order of increasing atomic ____ | back 2 c. number |
front 3 3. Which of the following categories includes the majority of the elements ? | back 3 c. metals |
front 4 4. of the elements Pt, V, Li, and Kr, which is nonmetal? | back 4 d. Kr (Krypton) |
front 5 5. The atomic number of an element in the total number of which particles in the nucleus? | back 5 b. protons |
front 6 6. what element has the electron configuration: 1s^2 2^2 2p^6 3s^2 3p^3 | back 6 phosphorus (15) |
front 7 7. which of the following is true about the electron configuration of the noble gasses? | back 7 a. the highest compound s and p sublevels are completely filled |
front 8 8. which of the following elements is a transition metal? | back 8 b. copper |
front 9 9. which of the following groups contains only representative elements? | back 9 c. Al, Mg, Li |
front 10 10. of the elements Fc, Hg, U and Te which is a representative element? | back 10 d. Te |
front 11 11. how does atomic radius change from top to bottom in a group in the periodic table? | back 11 d. it tends to increase |
front 12 12. what causes the shielding effect to remain constant across a period? | back 12 a. electrons are added to the same principal energy level |
front 13 13. what element in the second period has the largest atomic radius? | back 13 b. lithium |
front 14 14. which of the following elements has the smallest atomic radius | back 14 b. chlorine |
front 15 15. what is the charge of a cation? | back 15 a. a positive charge |
front 16 16. which of the following statements is true about ions? | back 16 b. cations form when an atom loses electrons |
front 17 17. why is the second ionization energy greater than the first ionization energy? | back 17 d. the nuclear attraction from protons in the nucleus decreases |
front 18 18. in which of the following sets are the charges gives correctly for all the ions? | back 18 b. k+, Sr^2, O^2- |
front 19 19. what is the element with the lowest electronegativity value? | back 19 a. cesium |
front 20 20. what is the element with the highest electronegativity value? | back 20 d. fluorine |
front 21 21. for group 2A metals, which electron is the most difficult to remove? | back 21 c. the third |
front 22 22. Which of the following factors contribute to decrease in ionization energy within a group in the periodic table as the number increases? | back 22 b. increase in size of the nucleus |
front 23 23. which statement is true about electronegativity? | back 23 d. electronegativity generally increase from left to right across a period |
front 24 24. compared with the electronegativities of the element on the left side of a period to electronegativities of the element in the right side of the same period tend to be | back 24 b. higher |
front 25 25. Which of the following statement correctly compares the relative size of an ion to its neutral atom | back 25 a. the radius of an anion is greater than the radius of its neutral atom |
front 26 26. which group of elements in the periodic table is known as alkali metals? | back 26 group 1 |
front 27 27. which group in the periodic table is known as the noble gasses? | back 27 group 18 |
front 28 28. an element has an atomic number of 80, how many protons and electrons are in an atom of the element | back 28 80 protons and 80 electrons |
front 29 29. what is the electron configuration of oxygen? | back 29 1s2 2s2 2p4 |
front 30 30. what is the electron configuration of sulfur? | back 30 1s2 2s2 2p6 3s2 3p4 |
front 31 31. from which orbital is a lithium atom is an electron transferred to form Li+ ? | back 31 s2 |
front 32 32. what is the noble gas configuration for sulfur | back 32 [Ne]3s2 3p4 |
front 33 33. what is the noble gas configuration for gallium? | back 33 [Ar] 3d10 4s2 4p1 |
front 34 34. how many electrons are in the highest occupied energy level for oxygen? | back 34 6 electrons |
front 35 35. how many valence electrons are there for nitrogen? | back 35 5 valence electrons |
front 36 36. | back 36 H |
front 37 37. | back 37 I |
front 38 38. | back 38 f |
front 39 39. | back 39 D |
front 40 40. | back 40 E |
front 41 41. | back 41 C |
front 42 42. | back 42 G |
front 43 43. | back 43 J |
front 44 44, | back 44 A |