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One, I believe. Because a chord is a line across a circle and a diameter is the longest length you can get within a circle, if that makes any sense.
Answer:
maths challenge>
Step-by-step explanation:
samee
Answer:
Thomson ----------- \ /--------------------- Matter is made up of invisible atoms
Rutherford -------------|--|---------------------- Mass of an atom [in the center]
Dalton -------------|-/ /------------------ Electrons move in circular paths...
Bohr -------------|-----|------\ /------ Electrons exist in a cloud of probability.
Schrodinger -------------|----/ \----|------ Atoms contain Electrons
\----------------/
Answer:
Equation:

Step-by-step explanation:

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