Podcast
Questions and Answers
How many valence electrons does a neutral Cl atom with atomic number 17 have?
How many valence electrons does a neutral Cl atom with atomic number 17 have?
- 5 (correct)
- 7
- 8
- 2
What is the role of valence electrons in determining the chemical properties of an atom/element?
What is the role of valence electrons in determining the chemical properties of an atom/element?
- Determining the atomic number
- Controlling the electrical conductivity
- Controlling the chemical properties and bonding behavior (correct)
- Determining the number of electron shells
Why are atoms/ions with a filled outmost shell considered stable?
Why are atoms/ions with a filled outmost shell considered stable?
- Due to a higher number of electron shells
- Because they have a higher atomic number
- They have a stable outmost shell with the required number of electrons (correct)
- They exhibit electrical conductivity
Which group of elements in the periodic table tends to accept 2 electrons during bonding?
Which group of elements in the periodic table tends to accept 2 electrons during bonding?
What does each row in the periodic table indicate about the elements within that row?
What does each row in the periodic table indicate about the elements within that row?
How do similar valence electron structures in columns of the periodic table affect the properties of elements within those columns?
How do similar valence electron structures in columns of the periodic table affect the properties of elements within those columns?
What is the averaged (over naturally occurring isotope) mass (weight) for one aluminum atom?
What is the averaged (over naturally occurring isotope) mass (weight) for one aluminum atom?
According to the Bohr model, what are the different 'orbits' or energy levels that electrons can occupy in an atom?
According to the Bohr model, what are the different 'orbits' or energy levels that electrons can occupy in an atom?
Which of the following is a correct representation of the electron configuration for a neutral aluminum (Al) atom?
Which of the following is a correct representation of the electron configuration for a neutral aluminum (Al) atom?
What is the relationship between the number of valence electrons and the reactivity of an element?
What is the relationship between the number of valence electrons and the reactivity of an element?
What is the Pauli exclusion principle, and how does it apply to the arrangement of electrons in an atom?
What is the Pauli exclusion principle, and how does it apply to the arrangement of electrons in an atom?
Which of the following is a characteristic of ionic bonds in materials?
Which of the following is a characteristic of ionic bonds in materials?
What is the relationship between the atomic number (Z) and the number of protons in the nucleus of an atom?
What is the relationship between the atomic number (Z) and the number of protons in the nucleus of an atom?
What is the relationship between the atomic mass (A) and the number of protons and neutrons in an atom?
What is the relationship between the atomic mass (A) and the number of protons and neutrons in an atom?
Which of the following best describes the concept of an isotope?
Which of the following best describes the concept of an isotope?
How many Al atoms are present, on average, in one gram of aluminum?
How many Al atoms are present, on average, in one gram of aluminum?
What is the relationship between the number of valence electrons and the type of chemical bond formed between atoms?
What is the relationship between the number of valence electrons and the type of chemical bond formed between atoms?
Which of the following statements about the periodic table is correct?
Which of the following statements about the periodic table is correct?
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