chemistry atomic structure practice 1\nx = element symbol\na = mass number # of protons (p) + # neutrons…

chemistry atomic structure practice 1\nx = element symbol\na = mass number # of protons (p) + # neutrons (n)\nz = atomic number # of protons\nn = # of neutrons\na - z = n\na typical isotopic symbol takes this form: $_{z}^{a}x$\nex. the isotopic symbol for fluorine would be $_{9}^{19}f$\nfill in the missing items in the table below.\nname symbol z a #p #e #n isotopic symbol\nsodium na 11 23 11 11 12 $_{11}^{23}na$\nchlorine cl 17 35 17 17 18 $_{17}^{35}cl$\npotassium k 19 39 19\nfill in the missing items in the table below.\nname symbol z a #p #e #n isotopic symbol\np 31\niron 56\n 53 127\nfill in the missing items in the table below.\nname symbol z a #p #e #n isotopic symbol\nsilver 108\n 36 84\nw 184

chemistry atomic structure practice 1\nx = element symbol\na = mass number # of protons (p) + # neutrons (n)\nz = atomic number # of protons\nn = # of neutrons\na - z = n\na typical isotopic symbol takes this form: $_{z}^{a}x$\nex. the isotopic symbol for fluorine would be $_{9}^{19}f$\nfill in the missing items in the table below.\nname symbol z a #p #e #n isotopic symbol\nsodium na 11 23 11 11 12 $_{11}^{23}na$\nchlorine cl 17 35 17 17 18 $_{17}^{35}cl$\npotassium k 19 39 19\nfill in the missing items in the table below.\nname symbol z a #p #e #n isotopic symbol\np 31\niron 56\n 53 127\nfill in the missing items in the table below.\nname symbol z a #p #e #n isotopic symbol\nsilver 108\n 36 84\nw 184

Answer

Explanation:

Step1: Recall atomic - structure relationships

Atomic number (Z =) number of protons (#p), for a neutral atom, number of electrons (#e=) number of protons (#p), and number of neutrons (#n=A - Z), and the isotopic symbol is (_{Z}^{A}X).

Step2: Complete Sodium (Na) row

Given (Z = 11), (A = 23). (#p=Z = 11), (#e=#p = 11), (#n=A - Z=23 - 11 = 12), isotopic symbol is (_{11}^{23}Na).

Step3: Complete Chlorine (Cl) row

Given (Z = 17), (A = 35). (#p = 17), (#e=#p = 17), (#n=A - Z=35 - 17 = 18), isotopic symbol is (_{17}^{35}Cl).

Step4: Complete Potassium (K) row

Given (Z = 19), (A = 39). (#p = 19), (#e=#p = 19), (#n=A - Z=39 - 19 = 20), isotopic symbol is (_{19}^{39}K).

Step5: Complete Phosphorus (P) row

(Z) for (P) is (15), (A = 31), (#p=Z = 15), (#e=#p = 15), (#n=A - Z=31 - 15 = 16), isotopic symbol is (_{15}^{31}P).

Step6: Complete Iron (Fe) row

(Z) for (Fe) is (26), (A = 56), (#p=Z = 26), (#e=#p = 26), (#n=A - Z=56 - 26 = 30), isotopic symbol is (_{26}^{56}Fe).

Step7: Complete Iodine - like row

Given (#p = 53), so (Z = 53), (A = 127), (#e=#p = 53), (#n=A - Z=127 - 53 = 74), isotopic symbol is (_{53}^{127}I).

Step8: Complete Silver (Ag) row

(Z) for (Ag) is (47), (A = 108), (#p=Z = 47), (#e=#p = 47), (#n=A - Z=108 - 47 = 61), isotopic symbol is (_{47}^{108}Ag).

Step9: Complete Krypton - like row

Given (Z = 36), (A = 84), (#p=Z = 36), (#e=#p = 36), (#n=A - Z=84 - 36 = 48), isotopic symbol is (_{36}^{84}Kr).

Step10: Complete Tungsten (W) row

(Z) for (W) is (74), (A = 184), (#p=Z = 74), (#e=#p = 74), (#n=A - Z=184 - 74 = 110), isotopic symbol is (_{74}^{184}W).

Answer:

Name Symbol Z A #p #e #n Isotopic Symbol
Sodium Na 11 23 11 11 12 (_{11}^{23}Na)
Chlorine Cl 17 35 17 17 18 (_{17}^{35}Cl)
Potassium K 19 39 19 19 20 (_{19}^{39}K)
Phosphorus P 15 31 15 15 16 (_{15}^{31}P)
Iron Fe 26 56 26 26 30 (_{26}^{56}Fe)
Iodine I 53 127 53 53 74 (_{53}^{127}I)
Silver Ag 47 108 47 47 61 (_{47}^{108}Ag)
Krypton Kr 36 84 36 36 48 (_{36}^{84}Kr)
Tungsten W 74 184 74 74 110 (_{74}^{184}W)