Group 7 element
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| Group | 7 |
|---|---|
| Period | |
| 4 | 25 Mn |
| 5 | 43 Tc |
| 6 | 75 Re |
| 7 | 107 Bh |
A Group 7 element is the series of elements in group 7 (IUPAC style) in the periodic table, which consists of the transition metals manganese (Mn), technetium (Tc), rhenium (Re), and bohrium (Bh).
All of these elements are classed in Group 7 because their valence shell holds four electrons. Technetium has no stable isotopes. Technetium, and promethium, are the only two such elements before polonium, after which no known element has a stable isotope.
| Explanation of right side periodic table slice: | Transition Metals | atomic number in red are gases | atomic number in black are solids | solid borders are older than the Earth (Primordial elements) | dotted borders are made artificially (Synthetic elements) | dashed borders have no isotopes older than the earth |
| Standard table | Vertical table | Table with names | Names and atomic masses (large) | Names and atomic masses (small) | Names and atomic masses (text only) | Inline F-block | Elements to 218 | Electron configurations | Metals and non metals | Table by blocks |
| Lists of Elements |
| Name | Atomic symbol | Atomic number | Boiling point | Melting point | Density | Atomic mass
|
| Groups: 1 - 2 - 3 - 4 - 5 - 6 - 7 - 8 - 9 - 10 - 11 - 12 - 13 - 14 - 15 - 16 - 17 - 18 |
| Periods: 1 - 2 - 3 - 4 - 5 - 6 - 7 - 8 - 9 |
| Series: Alkalis - Alkaline earths - Lanthanides - Actinides - Transition metals - Poor metals - Metalloids - Nonmetals - Halogens - Noble gases |
| Blocks: s-block - p-block - d-block - f-block - g-block |
ar:عناصر المجموعة السابعة
ca:Grup 7 de la taula periòdica es:Elementos del grupo 7 eo:Elemento de grupo 7 it:Elementi del gruppo 7 ja:第7族元素 th:ธาตุหมู่ 7
