Question

complete the sentences by filling in the blanks to explain how an atom is organized: energy shells particles orbit nucleus an atom has a central ________. an atom has pathways about the nucleus called ______. the shells are sometimes called ______ levels. subatomic ______ called protons and neutrons are located in the nucleus. electrons ________ about the nucleus in the shells.

Explanation:

In atomic structure, the nucleus is at the center. Pathways around the nucleus are orbits. Shells are related to energy levels. Protons and neutrons are sub - atomic particles in the nucleus, and electrons orbit in the shells.

Answer:

An atom has a central nucleus.
An atom has pathways about the nucleus called orbits.
The shells are sometimes called energy levels.
Subatomic particles called protons and neutrons are located in the nucleus.
Electrons orbit about the nucleus in the shells.