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24.08.2021 •
Chemistry
15
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Arial
12
+
BIU A
3
2
Element
Element
Number
Mass
Protons
Electrons
Neutrons
11
Sodium
Na
1
11
22.99
11
12
26
2
Iron
13
3
Aluminum
12.01
4
Carbon
Gold
79
5
16
6
Phosphorus
33
7
Arsenic
10
8
Neon
K
9
Potassium
Cobalt
27
10
74
11
lodine
207.2
12
Lead
Solved
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Ответ:
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Explanation: