CHEMISTRY______NAME_____
CHEMISTRYNAMEASSIGNMENT #I.D.#DATE DUEPERIODIC TABLE LOGIC PROBLEMThe code letters A to Z (omitting J) have been assigned to the first 25 elements in the short form of the periodic table. These code letters do not represent the chemical symbols, nor have the letters been assigned in alphabetical order. The letters are presented in the following groups: zrd, sifp, xbe, lht, qka, wov, ymc, gun. Your assignment is to arrange these elements in the proper periodic form in Table I according to the information given. Please indicate the atomic number you are assigning to each letter in Table II once you have determined the position of each letter in Table I.Hint: Figure out which group each family belongs, then arrange the elements within the group. Table I.GroupIalkaliIIalkaliIIIIVVVIVIIhalogensVIIInoblePeriodmetalsearthgases1234Clues: 1. U has a total of 6 electrons. 2. NA2 is the simple formula of an oxide. 3. E is a noble gas (inert gas). 4. S is an alkali metal. 5. D has the smallest atomic mass in its group. 6. O has an atomic number larger than V but smaller than W. 7. C has 5 electrons in its outer energy level. 8. L is an alkaline earth element. 9. O is a halogen.10. The atomic mass of T is more than that of H but less than that of L.11. M has an atomic number one less than that of A.12. The atomic radius of Q is larger than that of A.13. The electrons of atom N are distributed over three energy levels.14. Atoms of I are larger than those of S.15. The density of P is less than that of S.16. R has the largest atomic mass of its group.17. F is a gas. 18. Atom B contains 10 protons.19. Q has an atomic mass less than that of K.20. Y is more metallic than either M or C.21. X has an atomic number one higher than F. Table II.ElementABCDEFGHIKLAtomic numberElementMNOPQRSTUVWAtomic numberElementXYZAtomic number ................
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