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
flagPakistan
96%
3%
0%
0%
51
flagCanada
94%
2%
0%
2%
34
flagRepublic of Ireland
94%
0%
0%
5%
19
flagNepal
94%
5%
0%
0%
17
flagAustralia
93%
3%
3%
0%
65
flagGermany
93%
2%
2%
0%
46
flagIndia
92%
1%
2%
1%
462
flagGhana
92%
0%
0%
0%
26
flagNigeria
91%
1%
1%
3%
98
flagthe Philippines
90%
0%
1%
5%
53
flagMalaysia
90%
9%
0%
0%
21
flagthe Netherlands
90%
10%
0%
0%
20
flagPoland
87%
7%
2%
2%
3290
flagthe United Kingdom
86%
5%
1%
5%
160
flagthe United States
85%
5%
2%
4%
483
flagthe United Arab Emirates
84%
0%
5%
5%
19
flagSouth Africa
84%
7%
0%
7%
13
flagKenya
81%
0%
9%
0%
11
flagGreece
69%
15%
7%
7%
13
flagUkraine
41%
23%
20%
5%
34