What is the chemical symbol of silicon?

Si
Kr
Kz
Sr
Silicon was identified as an element by the French physicist Antoine Lavoisier (1743-1794) in 1787. Stable silicon isotopes are 28Si, 29Si and 30Si. Silicon in nature occurs in the form of silicon dioxide and silicates, never in a free state. It plays an important role in the body - it is necessary along with vitamin C for proper collagen synthesis, conditions faster wound healing, improves the condition of hair, skin and nails, and removes aluminum from the body. It is also a good medium for actively growing tumors (eg leukemia and glioma), so it is forbidden to supplement it.
Mateusz Olszowy
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Answers by country

Si
Kr
Kz
Sr
answers
flagthe Philippines
100%
0%
0%
0%
18
flagGermany
100%
0%
0%
0%
11
flagPakistan
100%
0%
0%
0%
10
flagIndia
94%
1%
1%
0%
164
flagthe United States
92%
4%
0%
2%
69
flagAustralia
91%
4%
4%
0%
24
flagPoland
87%
6%
2%
2%
1145
flagthe United Kingdom
82%
3%
7%
7%
28