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
flagGermany
0%
56%
6%
37%
32
flagIndia
7%
53%
18%
16%
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flagCanada
6%
53%
13%
26%
15
flagItaly
15%
53%
7%
23%
13
flagthe Philippines
16%
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20%
12%
25
flagthe United Kingdom
6%
50%
11%
30%
136
flagthe United Arab Emirates
7%
50%
28%
14%
14
flagSweden
20%
50%
20%
10%
10
flagAustralia
4%
44%
20%
28%
25
flagthe United States
7%
42%
19%
26%
263
flagNorway
10%
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10
flagPoland
10%
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2948
flagFrance
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13
flagUnknown
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34
flagMalaysia
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14
flagPakistan
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15

Gender

men39%
women33%
by mistake in the elements naming approval process
10%
10%
from the name of the Swedish Ytterby mine
39%
33%
they are in the periodic table together therefore have similar names
11%
11%
from the surname of their discoverer, Ingmar Terber
39%
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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