|
Calcium
|
Ca
|
20
|
Alkaline earth metal
|
the Latin calx, 'lime'
|
2
|
4
|
40.08
|
0.00
|
1.54
|
1115.00
|
1757.00
|
0.65
|
1.00
|
41500.00
|
|
Silicon
|
Si
|
14
|
Metalloid
|
from the Latin silex, 'flint' (originally silicium)
|
14
|
3
|
28.09
|
|
2.33
|
1687.00
|
3538.00
|
0.71
|
1.90
|
282000.00
|
|
Carbon
|
C
|
6
|
Reactive nonmetal
|
the Latin carbo, 'coal'
|
14
|
2
|
12.01
|
0.00
|
2.27
|
3800.00
|
4300.00
|
0.71
|
2.55
|
200.00
|
|
Sulfur
|
S
|
16
|
Reactive nonmetal
|
the Latin sulphur, 'fire and brimstone'
|
16
|
3
|
32.06
|
|
2.07
|
388.36
|
717.87
|
0.71
|
2.58
|
350.00
|
|
Potassium
|
K
|
19
|
Alkali metal
|
New Latin potassa, 'potash' (kalium in Latin)
|
1
|
4
|
39.10
|
0.00
|
0.86
|
336.53
|
1032.00
|
0.76
|
0.82
|
20900.00
|
|
Phosphorus
|
P
|
15
|
Reactive nonmetal
|
the Greek phoosphoros, 'carrying light'
|
15
|
3
|
30.97
|
0.00
|
1.82
|
317.30
|
550.00
|
0.77
|
2.19
|
1050.00
|
|
Fluorine
|
F
|
9
|
Reactive nonmetal
|
the Latin fluere, 'to flow'
|
17
|
2
|
19.00
|
0.00
|
0.00
|
53.53
|
85.03
|
0.82
|
3.98
|
585.00
|
|
Aluminium
|
Al
|
13
|
Post-transition metal
|
from alumina, a compound (originally alumium)
|
13
|
3
|
26.98
|
0.00
|
2.70
|
933.47
|
2792.00
|
0.90
|
1.61
|
82300.00
|
|
Oxygen
|
O
|
8
|
Reactive nonmetal
|
from the Greek oxy-, both 'sharp' and 'acid', and -gen, meaning 'acid-forming'
|
16
|
2
|
16.00
|
0.00
|
0.00
|
54.36
|
90.20
|
0.92
|
3.44
|
461000.00
|
|
Magnesium
|
Mg
|
12
|
Alkaline earth metal
|
Magnesia, a district of Eastern Thessaly in Greece
|
2
|
3
|
24.31
|
0.00
|
1.74
|
923.00
|
1363.00
|
1.02
|
1.31
|
23300.00
|