Chemistry · Periodic Classification of Elements
According to Dobereiner's Triads, which of the following elements can be placed between Calcium (Ca) and Barium (Ba)? (Atomic mass of Ca = 40.1 and atomic mass of Ba = 137.3)
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1Nitrogen (atomic mass = 14.00)
- 2Phosphorus (atomic mass = 30.97)
- 3Chlorine (atomic mass = 35.50)
- 4Strontium (atomic mass = 87.62)✓
Correct answer
Strontium (atomic mass = 87.62)
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