|
Helium
|
He
|
2
|
Noble gas
|
the Greek helios, 'sun'
|
18
|
1
|
4.00
|
0.00
|
0.00
|
|
4.22
|
5.19
|
|
0.01
|
|
Rutherfordium
|
Rf
|
104
|
Transition metal
|
Ernest Rutherford, chemist and physicist
|
4
|
7
|
|
|
-23.20
|
-2400.00
|
-5800.00
|
|
|
0.00
|
|
Lawrencium
|
Lr
|
103
|
Actinide
|
Ernest O. Lawrence, physicist
|
|
7
|
|
|
-15.60
|
-1900.00
|
|
|
1.30
|
0.00
|
|
Fermium
|
Fm
|
100
|
Actinide
|
Enrico Fermi, physicist
|
|
7
|
|
|
-9.70
|
-1125.00
|
|
|
1.30
|
0.00
|
|
Nobelium
|
No
|
102
|
Actinide
|
Alfred Nobel, chemist, engineer, inventor of dynamite
|
|
7
|
|
|
-9.90
|
-1100.00
|
|
|
1.30
|
0.00
|
|
Mendelevium
|
Md
|
101
|
Actinide
|
Dmitri Mendeleev, chemist and inventor
|
|
7
|
|
|
-10.30
|
-1100.00
|
|
|
1.30
|
0.00
|
|
Tennessine
|
Ts
|
117
|
Unknown chemical properties
|
Tennessee, United States
|
17
|
7
|
|
|
-7.20
|
-723.00
|
-883.00
|
|
|
0.00
|
|
Livermorium
|
Lv
|
116
|
Unknown chemical properties
|
Lawrence Livermore National Laboratory (in Livermore, California) which collaborated with JINR on its synthesis
|
16
|
7
|
|
|
-12.90
|
-709.00
|
-1085.00
|
|
|
0.00
|
|
Moscovium
|
Mc
|
115
|
Unknown chemical properties
|
Moscow Oblast, Russia, where the element was first synthesized
|
15
|
7
|
|
|
-13.50
|
-700.00
|
-1400.00
|
|
|
0.00
|
|
Nihonium
|
Nh
|
113
|
Unknown chemical properties
|
the Japanese name for Japan, Nihon, where the element was first synthesized
|
13
|
7
|
|
|
-16.00
|
-700.00
|
-1400.00
|
|
|
0.00
|