Identify each of the following as describing either a proton, a neutron, or an electron:
a. has the smallest mass

검증된 단계별 안내

Step 1: Begin by recalling the relative masses of subatomic particles. A proton and a neutron have similar masses, approximately 1 atomic mass unit (amu), while an electron has a much smaller mass, approximately 1/1836 of the mass of a proton.

Step 2: Compare the masses of the three particles. Since the electron's mass is significantly smaller than that of a proton or neutron, it is the particle with the smallest mass.

Step 3: Understand the significance of this property. The small mass of the electron allows it to move rapidly around the nucleus, contributing to the atom's overall structure and chemical behavior.

Step 4: Confirm that the correct identification for the particle with the smallest mass is the electron.

Step 5: Review the concept of subatomic particles and their properties to reinforce understanding of their roles in atomic structure.

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45s

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주요 개념

질문에 올바르게 답하기 위해 반드시 이해해야 하는 핵심 개념들은 다음과 같습니다.

Proton

A proton is a positively charged subatomic particle found in the nucleus of an atom. It has a relative mass of approximately 1 atomic mass unit (amu) and plays a crucial role in determining the atomic number of an element, which defines its identity.

Neutron

A neutron is a neutral subatomic particle also located in the nucleus of an atom. It has a mass similar to that of a proton, approximately 1 amu, and contributes to the atomic mass of an element, influencing its stability and isotopic composition.

Electron

An electron is a negatively charged subatomic particle that orbits the nucleus of an atom. It has a significantly smaller mass than protons and neutrons, approximately 1/1836 of an amu, and is essential for chemical bonding and the formation of molecules.

Identify each of the following as describing either a proton, a neutron, or an electron:a. has the smallest mass