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Questions and Answers
What is the center of the atom called?
What is the center of the atom called?
Nucleus
What are the negative particles in the electron cloud called?
What are the negative particles in the electron cloud called?
Electrons
What is a particle with no charge found in the nucleus of an atom?
What is a particle with no charge found in the nucleus of an atom?
Neutron
What is the area outside the nucleus where electrons are located called?
What is the area outside the nucleus where electrons are located called?
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What are the positive particles found in the nucleus of an atom called?
What are the positive particles found in the nucleus of an atom called?
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Most of the atom is composed of solid matter.
Most of the atom is composed of solid matter.
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Study Notes
Atom Structure and Components
- The nucleus is the central part of the atom, housing protons and neutrons.
- Electrons are negatively charged particles located in the electron cloud, crucial in chemical bonding and reactions. Their existence was established by JJ Thomson.
- Neutrons are neutral particles found within the nucleus, contributing to atomic mass without affecting electrical charge. They were discovered by James Chadwick.
- The electron cloud refers to the area surrounding the nucleus where electrons are situated, representing the probable locations of these particles.
- Protons are positively charged particles also located in the nucleus, fundamental to determining the atomic number and identity of an element, first identified by Ernest Rutherford.
- Atoms consist of predominantly empty space, highlighting that most of their volume is not filled with matter but rather consists of the electron cloud surrounding the nucleus.
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