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Flashcards on Structure of Atoms
Click on the flashcard to see the answer
What is an atom?
An atom is the smallest unit of matter that retains the chemical properties of an element.
Who discovered the atomic structure?
The atomic structure was proposed by J.J. Thomson and further modified by Ernest Rutherford.
What are the three subatomic particles found in an atom?
The three subatomic particles found in an atom are protons, neutrons, and electrons.
What is the charge of a proton?
A proton has a positive charge of +1.
What is the charge of an electron?
An electron has a negative charge of -1.
What is the charge of a neutron?
A neutron has no charge and is neutral.
Where are protons and neutrons located in an atom?
Protons and neutrons are located in the nucleus of an atom.
Where are electrons located in an atom?
Electrons are located outside the nucleus, in energy levels or electron shells.
What is the atomic number of an element?
The atomic number of an element is the number of protons in an atom of that element.
What is the mass number of an element?
The mass number of an element is the sum of protons and neutrons in an atom of that element.
What are isotopes?
Isotopes are atoms of the same element with different numbers of neutrons.
What is electron configuration?
Electron configuration refers to the arrangement of electrons in an atom's electron shells.
What is the Bohr model of the atom?
The Bohr model describes electrons in fixed energy levels or shells around the nucleus.
What are valence electrons?
Valence electrons are the electrons in the outermost energy level of an atom.
How are atoms represented in chemical equations?
Atoms are represented using their chemical symbols and subscripts to indicate the number of atoms.
What is an atom?
An atom is the smallest unit of matter that retains the chemical properties of an element.
Who discovered the atomic structure?
The atomic structure was proposed by J.J. Thomson and further modified by Ernest Rutherford.
What are the three subatomic particles found in an atom?
The three subatomic particles found in an atom are protons, neutrons, and electrons.
What is the charge of a proton?
A proton has a positive charge of +1.
What is the charge of an electron?
An electron has a negative charge of -1.
What is the charge of a neutron?
A neutron has no charge and is neutral.
Where are protons and neutrons located in an atom?
Protons and neutrons are located in the nucleus of an atom.
Where are electrons located in an atom?
Electrons are located outside the nucleus, in energy levels or electron shells.
What is the atomic number of an element?
The atomic number of an element is the number of protons in an atom of that element.
What is the mass number of an element?
The mass number of an element is the sum of protons and neutrons in an atom of that element.
What are isotopes?
Isotopes are atoms of the same element with different numbers of neutrons.
What is electron configuration?
Electron configuration refers to the arrangement of electrons in an atom's electron shells.
What is the Bohr model of the atom?
The Bohr model describes electrons in fixed energy levels or shells around the nucleus.
What are valence electrons?
Valence electrons are the electrons in the outermost energy level of an atom.
How are atoms represented in chemical equations?
Atoms are represented using their chemical symbols and subscripts to indicate the number of atoms.
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