Question Video: Determining the Name of an Unidentified Subatomic Particle | Nagwa Question Video: Determining the Name of an Unidentified Subatomic Particle | Nagwa

Question Video: Determining the Name of an Unidentified Subatomic Particle Science • First Year of Preparatory School

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The image shows a simplified representation of an atom. What structure is indicated by X?

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Video Transcript

The image shows a simplified representation of an atom. What structure is indicated by X?

An atom is the smallest unit of ordinary matter that forms a chemical element. There are two main regions in an atom: the nucleus in the center of the atom and energy levels ordinarily found outside of the nucleus. The nucleus and energy levels are where we can find subatomic particles. Subatomic particles are smaller pieces of matter that make up an atom. The three main subatomic particles are positively charged protons, neutrally charged neutrons, and negatively charged electrons. The protons and neutrons are located in the nucleus, while electrons are located in energy levels.

To answer the question, we need to identify what structure is indicated by X. X points to a particle in an energy level. Energy levels only contain electrons. Therefore, the structure that is indicated by X is an electron.

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