solid liquid Chemical Periodic Table gas synth
Name Invented By   Atomic weight Shell Orbital Melt Boil(C) Isotopes Specific Gravity
1
H
                                  2
He
3
Li
4
Be
                      5
B
6
C
7
N
8
O
9
F
10
Ne
11
Na
12
Mg
13
Al
14
Si
15
P
16
S
17
Cl
18
Ar
19
K
20
Ca
21
Sc
22
Ti
23
V
24
Cr
25
Mn
26
Fe
27
Co
28
Ni
29
Cu
30
Zn
31
Ga
32
Ge
33
As
34
Se
35
Br
36
Kr
37
Rb
38
Sr
39
Y
40
Zr
41
Nb
42
Mo
43
Tc
44
Ru
45
Rh
46
Pd
47
Ag
48
Cd
49
In
50
Sn
51
Sb
52
Te
53
I
54
Xe
   
55
Cs
56
Ba
57
La
72
Hf
73
Ta
74
W
75
Re
76
Os
77
Ir
78
Pt
c79
Au
80
Hg
81
Tl
82
Pb
83
Bi
84
Po
85
At
86
Rn
   
87
Fr
88
Ra
89
Ac
104
Rf
105
Db
106
Sg
107
Bh
108
Hs
109
Mt
110
Uun
111
Uuu
112
Uub
113
Uut
114
Uuq
         
      Lanthanides 58
Ce
59
Pr
60
Nd
61
Pm
62
Sm
63
Eu
64
Gd
65
Tb
66
Dy
67
Ho
68
Er
69
Tm
70
Yb
71
Lu
 
      Actinides 90
Th
91
Pa
92
U
93
Np
94
Pu
95
Am
96
Cm
97
Bk
98
Cf
99
Es
100
Fm
101
Md
102
No
103
Lr
 
Periodic table design had blanks in it because there were unknown atomic elements with the appropriate properties discovered.
In a periodic table, the elements arranged in vertical columns are known as Groups.
The elements arranged in horizontal rows are known as Periods.
Group 1 is also called the Alkali Metal group.
These are strong Metals that are unusually soft and very reactive toward oxygen forming oxides and water forming hydroxides of the metal. These elements are so reactive toward oxygen and water vapor that they are stored under an inert liquid to protect them from oxygen and water vapour..
Group 2 is called the Alkaline Earth Metals.
These metals are not as soft as Group 1 metals. They also react more mildly with oxygen to produce oxides of the metals and only react with water at temperatures where the water is steam.
Groups 3-12 are referred to as the Transition Metal groups.
These metals are not as predictable because of the shielding effect of the inner electrons.

Groups 1-2 and 13-18 are referred to as the Representative Elements.
Group 17 is referred to as the Halogen Group. Group 18 is referred to as the Noble Gas Group (previously known as the Inert Gas Group).
There are two special series of Elements that occur right after the transition metal element Actinium (Actinides) and Lanthanum (Lanthanide).
The metals which tend to have their atoms losing electrons during a chemical change are roughly found to the left Group 14.
Non-metals which tend to have their atoms gaining electrons during chemical change are roughly found in Group 16-17
with some elements in the lower parts of Groups 15.
Metalloids which tend to have their atoms sometimes losing and sometimes gaining electrons during chemical change are generally found in Groups 14-16.
The Noble gases really belong to their own category since their atoms tend neither to lose or gain electrons.