Explain that Mendeleev thought he had arranged elements in order of increasing relative atomic mass but this was not always true because of the relative abundance of isotopes of some pairs of elements in the periodic table
Standard detail
C1.15
Depth 1Parent ID: 1218C8EAD4DD48FDA693C9D43FC390A4Standard set: GCSE Chemistry
Original statement
Quick facts
- Statement code
- C1.15
- List ID
- C1.15
- Standard ID
- B01E99461DC24FB9ACA488144E4D5F29
- Subject
- Chemistry
- Grades
- 08, 09, 10
- Ancestor IDs
- 1218C8EAD4DD48FDA693C9D43FC390A4
- Source document
- GCSE Chemistry Specification
- License
- CC BY 4.0 US