Chemistry · Periodic Classification of Elements
The arrangement of elements in the Modern Periodic Table is based on their:
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1increasing atomic mass in the groups
- 2increasing atomic number in the vertical columns
- 3increasing atomic number in the horizontal rows✓
- 4increasing atomic mass in the periods
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increasing atomic number in the horizontal rows
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