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Questions and Answers
What is the basic particle of the chemical elements?
What is the basic particle of the chemical elements?
How are atoms distinguished from each other?
How are atoms distinguished from each other?
What is the term used for atoms with the same number of protons but a different number of neutrons?
What is the term used for atoms with the same number of protons but a different number of neutrons?
What is the overall charge of an atom if it has more electrons than protons?
What is the overall charge of an atom if it has more electrons than protons?
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What constitutes more than 99.94% of an atom's mass?
What constitutes more than 99.94% of an atom's mass?
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Study Notes
Basic Particle of Chemical Elements
- Atoms are the fundamental units of chemical elements, serving as the smallest units that retain the properties of those elements.
Distinguishing Atoms
- Atoms are distinguished by their atomic number, which is defined by the number of protons in the nucleus.
- The arrangement of electrons around the nucleus also contributes to the unique characteristics of different elements.
Isotopes
- Atoms with the same number of protons but different numbers of neutrons are called isotopes.
- Isotopes of an element share chemical properties but can differ in mass and stability.
Atomic Charge
- An atom that has more electrons than protons carries a negative overall charge and is termed an anion.
- Conversely, if an atom has more protons than electrons, it holds a positive charge, known as a cation.
Atomic Mass Composition
- More than 99.94% of an atom's mass is constituted by its nucleus, which contains protons and neutrons.
- Electrons contribute minutely to the overall mass of the atom due to their negligible mass compared to protons and neutrons.
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Description
Test your knowledge of atomic structure, including protons, neutrons, electrons, and isotopes of chemical elements.
