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
flagItaly
9%
63%
0%
27%
11
flagIndia
8%
57%
15%
16%
123
flagGermany
0%
54%
4%
41%
24
flagCanada
6%
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13%
26%
15
flagthe United Kingdom
5%
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11%
29%
117
flagthe Philippines
17%
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21%
8%
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flagthe United States
7%
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17%
27%
241
flagAustralia
4%
44%
20%
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25
flagPoland
10%
37%
12%
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2404
flagMalaysia
21%
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14
flagPakistan
7%
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14

Gender

men40%
women33%
by mistake in the elements naming approval process
10%
9%
from the name of the Swedish Ytterby mine
40%
33%
they are in the periodic table together therefore have similar names
11%
11%
from the surname of their discoverer, Ingmar Terber
38%
45%

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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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