Complete the information below using the online periodic tables provided in the
ID: 563012 • Letter: C
Question
Complete the information below using the online periodic tables provided in the procedure.
Element
Atomic Number
Effective Nuclear Charge
1st Ionization Energies (kJ/mol)
Atomic Radius2 (pm)
Electro-
negativity Values3
Density of solid4 (kg/m3)
Number of stable isotopes
H
1
N/a
1312
37
2.2
88
He
2
N/a
2372
N/a
Li
3
1.69
520
0.98
Be
4
900
B
5
801
82
2460
2
C
6
1087
77
2267
3
N
7
3.83
75
3.04
O
8
4.45
3.44
F
9
3.98
Ne
10
69
N/A
1444
3
Na
11
2.51
154
968
Mg
12
1738
Al
13
Si
14
4.29
111
1.90
P
15
4.89
106
2.19
1
S
16
5.48
4
Cl
17
2030
Ar
18
N/A
K
19
3.50
196
Ca
20
4.40
174
1550
6
2 1 Angstrom = 100 pm; Covalent Atomic Radius taken from http://environmentalchemistry.com
3 Taken from http://environmentalchemistry.com or use Pauling Electronegativites
4 The preferred units are kg m-3 because the basic SI unit of weight is the kilogram (kg) and the preferred unit of length is the meter (m). To convert to the commonly used units of g cm-3, divide by 1000.
2 1 Angstrom = 100 pm; Covalent Atomic Radius taken from http://environmentalchemistry.com
3 Taken from http://environmentalchemistry.com or use Pauling Electronegativites
4 The preferred units are kg m-3 because the basic SI unit of weight is the kilogram (kg) and the preferred unit of length is the meter (m). To convert to the commonly used units of g cm-3, divide by 1000.
6 Fill in the data for Table 14.2 and create the following graphs and explain the pattern in each graph and how it relates to the Periodic Table.
First - the atomic numbers versus the Effective nuclear charge,
Second, the atomic numbers versus the 1st ionization energies,
Third – – the atomic numbers versus the Atomic radius, and
Fourth - – the atomic numbers versus the electronegativity values.
Element
Atomic Number
Effective Nuclear Charge
1st Ionization Energies (kJ/mol)
Atomic Radius2 (pm)
Electro-
negativity Values3
Density of solid4 (kg/m3)
Number of stable isotopes
H
1
N/a
1312
37
2.2
88
He
2
N/a
2372
N/a
Li
3
1.69
520
0.98
Be
4
900
B
5
801
82
2460
2
C
6
1087
77
2267
3
N
7
3.83
75
3.04
O
8
4.45
3.44
F
9
3.98
Ne
10
69
N/A
1444
3
Na
11
2.51
154
968
Mg
12
1738
Al
13
Si
14
4.29
111
1.90
P
15
4.89
106
2.19
1
S
16
5.48
4
Cl
17
2030
Ar
18
N/A
K
19
3.50
196
Ca
20
4.40
174
1550
6
Explanation / Answer
Element Atomic No. Effective Nuclear Charge 1st Ionisation Energy (Kj/mole) Atomic Radius Electro negativity Density No.of Stable Isotopes H 1 N/A 1312 37 2.2 88 2 He 2 N/A 2372 49 n/a 178 2 Li 3 1.69 520 123 0.98 534 2 Be 4 1.95 900 89 1.57 1848 1 B 5 2.6 801 82 2.04 2460 2 C 6 3.25 1087 77 2.55 2267 3 N 7 3.83 1403 75 3.04 1250 2 O 8 4.45 1410 74 3.44 1429 3 F 9 5.2 1681 72 3.98 1696 1 Ne 10 5.85 2080 69 n/a 1444 3 Na 11 2.51 496 154 0.93 968 1 Mg 12 2.85 737 136 1.31 1738 3 Al 13 3.5 577 125 1.61 2702 1 Si 14 4.29 786 111 1.9 2330 3 P 15 4.89 1012 106 2.19 1820 1 S 16 5.48 999 104 2.58 2070 4 Cl 17 6.1 1255 99 3.16 2030 2 Ar 18 6.75 1521 88 n/a 1782 3 K 19 3.5 419 196 0.82 862 2 Ca 20 4.4 590 174 1 1550 6