Relative formula Mass (Edexcel GCSE Chemistry Combined Science): Flashcards
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Symbol for relative atomic mass
Symbol for relative atomic mass
Ar
Standard used for relative atomic mass comparison
Standard used for relative atomic mass comparison
Carbon-12 atom
Location of Ar values
Location of Ar values
Periodic table
Units of Ar values
Units of Ar values
No units - just numbers
Symbol for relative formula mass
Symbol for relative formula mass
Mr
What relative formula mass (Mr) measures
What relative formula mass (Mr) measures
Mass of compounds (substances with multiple elements)
Method to calculate Mr
Method to calculate Mr
Sum (Ar × no. of atoms) for each element
Ar value for carbon
Ar value for carbon
12
Ar value for oxygen
Ar value for oxygen
16
Mr of
Mr of
44
Units of Mr values
Units of Mr values
No units - just numbers
Structure of ionic compounds like NaCl
Structure of ionic compounds like NaCl
Lattice of ions, not individual molecules