Question

ordering question
click and drag on elements in order
place these three models of the atom in historical order, starting with the oldest.
instructions
a central nucleus with individual electrons around it
a nucleus made of protons and neutrons surrounded by an electron cloud
electrons embedded in a ball of positive charge

Explanation:

The "electrons embedded in a ball of positive charge" is the Thomson's plum - pudding model, the oldest. The "a central nucleus with individual electrons around it" is Rutherford's model which came after. The "a nucleus made of protons and neutrons surrounded by an electron cloud" is the modern model.

Answer:

1. electrons embedded in a ball of positive charge
2. a central nucleus with individual electrons around it
3. a nucleus made of protons and neutrons surrounded by an electron cloud