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Questions and Answers
What determines the valence of an element?
What determines the valence of an element?
Which type of chemical bond is formed when atoms share a pair of electrons?
Which type of chemical bond is formed when atoms share a pair of electrons?
In ionic compounds, which group of elements is most likely to form cations?
In ionic compounds, which group of elements is most likely to form cations?
What happens to the size of an anion compared to its parent atom?
What happens to the size of an anion compared to its parent atom?
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What is the term used to describe an atom that has lost electron(s)?
What is the term used to describe an atom that has lost electron(s)?
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What type of state has higher energy than the ground state of an atom or molecule?
What type of state has higher energy than the ground state of an atom or molecule?
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Which quantum number describes the size of orbitals and the relative distance of electrons from the nucleus?
Which quantum number describes the size of orbitals and the relative distance of electrons from the nucleus?
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Which quantum number refers to the shape of the orbitals in an atom?
Which quantum number refers to the shape of the orbitals in an atom?
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According to Pauli's exclusion principle, how many electrons can occupy an orbital?
According to Pauli's exclusion principle, how many electrons can occupy an orbital?
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What rule states that electrons must distribute singly before pairing in orbitals?
What rule states that electrons must distribute singly before pairing in orbitals?
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What is the lowest energy state of an atom called?
What is the lowest energy state of an atom called?
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How does the orbital size change with increasing n-value?
How does the orbital size change with increasing n-value?
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What did Woehler achieve by synthesizing urea from ammonium cyanate in 1828?
What did Woehler achieve by synthesizing urea from ammonium cyanate in 1828?
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Which scientist is known for noting that organic compounds always contain the element carbon?
Which scientist is known for noting that organic compounds always contain the element carbon?
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What did Kekule and Couper demonstrate in 1858 that led to the concept of catenation?
What did Kekule and Couper demonstrate in 1858 that led to the concept of catenation?
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Why do organic compounds generally have low melting and boiling points compared to ionic compounds?
Why do organic compounds generally have low melting and boiling points compared to ionic compounds?
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What characteristic makes organic compounds nonpolar in nature?
What characteristic makes organic compounds nonpolar in nature?
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Why do organic compounds react slower than ionic compounds?
Why do organic compounds react slower than ionic compounds?
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What is the main reason atoms share their valence electrons?
What is the main reason atoms share their valence electrons?
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Which type of bonding involves the sharing of electrons between atoms?
Which type of bonding involves the sharing of electrons between atoms?
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In which type of covalent bond is there a partial positive and partial negative charge along the bond?
In which type of covalent bond is there a partial positive and partial negative charge along the bond?
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Which type of bond results from equal or almost equal sharing of electrons?
Which type of bond results from equal or almost equal sharing of electrons?
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When does ionic bonding occur between atoms?
When does ionic bonding occur between atoms?
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Which kind of covalent bond has the least difference in electronegativity values between combining atoms?
Which kind of covalent bond has the least difference in electronegativity values between combining atoms?
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What is the role of electrons in thermal conductivity?
What is the role of electrons in thermal conductivity?
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In a neutral atom, what is the relationship between the number of protons and electrons?
In a neutral atom, what is the relationship between the number of protons and electrons?
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What does the atomic number (Z) represent in an atom?
What does the atomic number (Z) represent in an atom?
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How is the mass number (A) calculated?
How is the mass number (A) calculated?
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What is the maximum number of electrons that can be accommodated in an orbital?
What is the maximum number of electrons that can be accommodated in an orbital?
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How do electron shells affect the chemical properties of an element?
How do electron shells affect the chemical properties of an element?
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