alleryStart learning →Sort the classifications
Exercise and reference answers
- Items
- Group
- Dobereiner
- Item
- Triads
- Group
- Dobereiner
- Item
- Three only
- Group
- Dobereiner
- Item
- Middle mean
- Group
- Newlands
- Item
- Octaves
- Group
- Newlands
- Item
- 56 elements
- Group
- Newlands
- Item
- Up to calcium
- Group
- Modern
- Item
- Atomic number
- Group
- Modern
- Item
- 18 groups
- Group
- Modern
- Item
- Moseley
- Groups
- Item
- Dobereiner
- Item
- Newlands
- Item
- Modern
- Instructions
- Drop each item onto Dobereiner, Newlands or modern.
Explanation
_Source: syllabus Science Class X, Chapter 5, Periodic Classification of Elements._
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