Which letter is not used as a symbol of chemical element?

A
B
C
Y
B is the chemical symbol of boron, C - carbon, Y - yttrium.

Answers distribution

A
B
C
Y
answers
flagDenmark
90%
0%
0%
10%
10
flagNorway
78%
7%
0%
14%
14
flagthe Philippines
66%
6%
0%
26%
15
flagthe United States
60%
6%
4%
28%
214
flagPoland
59%
8%
5%
26%
4477
flagIndia
59%
3%
5%
31%
131
flagCanada
58%
5%
11%
23%
17
flagthe United Kingdom
56%
10%
4%
28%
186
flagAustralia
56%
12%
0%
31%
16
flagUnknown
55%
8%
3%
32%
395
flagSingapore
53%
6%
0%
40%
15
flagthe Netherlands
50%
10%
20%
20%
10
flagFrance
47%
0%
17%
29%
17
flagGermany
32%
16%
13%
37%
43
flagthe United Arab Emirates
27%
18%
9%
45%
11
flagMalaysia
20%
0%
0%
80%
10
flagPakistan
18%
0%
18%
62%
16
flagNigeria
18%
9%
36%
36%
11

Gender

men58%
women60%
A
58%
60%
B
8%
10%
C
3%
4%
Y
29%
25%

Language versions

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answers
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Which letter is not used as a symbol of chemical element?
638
56%

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