Question

"Place the atomic theories in the order in which they were published.

A. Atoms are made of empty space with electrons around a positively charged mass. The terms nucleus and proton (+) are introduced.
B. Negatively charged particles are called electrons and are scattered inside a positively charged mass.
C. Electrons exist in a region around the nucleus called the electron cloud.
D. Each type of matter is only made up of one type of atom. Atoms are too small to be seen.
E. Electrons are arranged in energy levels. Lower energy levels are close to the nucleus and higher energy levels are farther away from the nucleus."

Answer 1

The atomic theories in order of publication are: empty space with positive mass, scattered electrons, one type of atom, energy levels of electrons, and electron cloud.

Step-by-step explanation:

The atomic theories have evolved over time as our understanding of atoms has increased. Here is the order in which these theories were published:

1. Atoms are made of empty space with electrons around a positively charged mass. The terms nucleus and proton (+) are introduced.
2. Negatively charged particles are called electrons and are scattered inside a positively charged mass.
3. Each type of matter is only made up of one type of atom. Atoms are too small to be seen.
4. Electrons are arranged in energy levels. Lower energy levels are close to the nucleus and higher energy levels are farther away from the nucleus.
5. Electrons exist in a region around the nucleus called the electron cloud.