Why do elements erbium, yttrium, ytterbium, terbium, have similar names?

by mistake in the elements naming approval process
from the name of the Swedish Ytterby mine
they are in the periodic table together therefore have similar names
from the surname of their discoverer, Ingmar Terber
Ytterby mine, located in the south-east part of the Swedish island and the town Resarö, was a rich source of many rare min­er­al­s. 4 chemical elements - yttrium, yt­ter­bium, terbium and erbium - were named after the mine com­mem­o­rat­ing their origin.

Answers distribution

by mistake in the elements naming approval process
from the name of the Swedish Ytterby mine
they are in the periodic table together therefore have similar names
from the surname of their discoverer, Ingmar Terber
answers
flagSpain
20%
60%
10%
10%
10
flagCanada
5%
58%
11%
23%
17
flagSingapore
0%
58%
25%
16%
12
flagthe United Arab Emirates
6%
53%
26%
13%
15
flagItaly
13%
53%
6%
26%
15
flagSwitzerland
7%
53%
7%
30%
13
flagIndia
7%
52%
18%
19%
168
flagSweden
14%
50%
21%
14%
14
flagthe United Kingdom
6%
48%
12%
31%
170
flagthe Philippines
18%
48%
18%
14%
27
flagAustralia
3%
46%
21%
25%
28
flagGermany
0%
45%
11%
42%
42
flagthe United States
7%
43%
18%
26%
284
flagFrance
6%
40%
26%
26%
15
flagPoland
12%
36%
12%
38%
4404
flagNorway
9%
36%
18%
36%
11
flagMalaysia
17%
35%
23%
17%
17
flagUnknown
11%
34%
13%
39%
311
flagRepublic of Ireland
0%
30%
30%
30%
10
flagPakistan
20%
28%
28%
24%
25

Gender

men34%
women34%
by mistake in the elements naming approval process
12%
11%
from the name of the Swedish Ytterby mine
34%
34%
they are in the periodic table together therefore have similar names
11%
10%
from the surname of their discoverer, Ingmar Terber
41%
44%

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Why do elements erbium, yttrium, ytterbium, terbium, have similar names?
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Author: Paweł Kołodziejczyk
Illustration: U.S. Army RDECOM
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