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A period 2 element is one of the chemical elements in the second row (or period) of the periodic table of the elements.
These are:
| Group | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| # Name | 3 Li | 4 Be | 5 B | 6 C | 7 N | 8 O | 9 F | 10 Ne | ||||||||||
| e--conf. | ||||||||||||||||||
Period 1 element -
Period 2 element -
Period 3 element -
Period 4 element -
Period 5 element -
Period 6 element -
Period 7 element -
Period 8 element
عناصر الدورة الثانية | Elementos del periodu 2 | Elements del període 2 | Periode-2-Element | Elementos del periodo 2 | Elemento de periodo 2 | Éléments de la période 2 | Elementi del periodo 2 | Periode-2-element | 第2周期元素 | Grundämnen i period 2 | ธาตุคาบ 2 | 2. periyot elementleri | 第2周期元素
"Period 2 element"