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Questions and Answers
What is the charge of an electron?
What is the charge of an electron?
- 9.11 × 10⁻³¹ C positive
- 9.11 × 10⁻³¹ C negative
- 1.6 × 10⁻¹⁹ C positive
- 1.6 × 10⁻¹⁹ C negative (correct)
What determines the atomic number of an element?
What determines the atomic number of an element?
- The number of protons in the nucleus (correct)
- The number of neutrons in the nucleus
- The number of electrons in the outer region
- The mass of the electron
What is the mass of a proton?
What is the mass of a proton?
- 9.11 × 10⁻³¹ kg
- 1.6749 × 10⁻²⁷ kg
- 1.6 × 10⁻¹⁹ kg
- 1.6726 × 10⁻²⁷ kg (correct)
What is the role of neutrons in the nucleus?
What is the role of neutrons in the nucleus?
What is the location of electrons in an atom?
What is the location of electrons in an atom?
What is the charge of a proton?
What is the charge of a proton?
What is the approximate mass of an electron?
What is the approximate mass of an electron?
Why do neutrons contribute to the atomic mass?
Why do neutrons contribute to the atomic mass?
What is the atomic number of an atom?
What is the atomic number of an atom?
What is the atomic mass number of an atom?
What is the atomic mass number of an atom?
What is the chemical symbol of an element?
What is the chemical symbol of an element?
What is an isotope of an element?
What is an isotope of an element?
What is a cation?
What is a cation?
What is an anion?
What is an anion?
What is the difference between a neutral atom and an ion?
What is the difference between a neutral atom and an ion?
What is the standard notation for representing an element?
What is the standard notation for representing an element?
Which of the following subatomic particles has a positive electric charge?
Which of the following subatomic particles has a positive electric charge?
What is the primary function of electrons in an atom?
What is the primary function of electrons in an atom?
Which subatomic particle is responsible for determining the chemical properties of an element?
Which subatomic particle is responsible for determining the chemical properties of an element?
What is the significance of the number of protons in a neutral atom?
What is the significance of the number of protons in a neutral atom?
What is the role of neutrons in the nucleus?
What is the role of neutrons in the nucleus?
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 in a neutral atom?
What is the significance of the atomic number of an element?
What is the significance of the atomic number of an element?
What is the characteristic of the mass of protons and neutrons?
What is the characteristic of the mass of protons and neutrons?
What is the primary function of the atomic number in an atom?
What is the primary function of the atomic number in an atom?
What is the sum of protons and neutrons in the nucleus of an atom?
What is the sum of protons and neutrons in the nucleus of an atom?
What is the primary difference between isotopes of the same element?
What is the primary difference between isotopes of the same element?
What is the result of an atom losing one electron?
What is the result of an atom losing one electron?
What is the symbol for a carbon atom with 6 protons and 6 neutrons?
What is the symbol for a carbon atom with 6 protons and 6 neutrons?
Why do isotopes of the same element exhibit the same chemical properties?
Why do isotopes of the same element exhibit the same chemical properties?
What is the charge of a sodium ion (Na⁺) formed by the loss of one electron from a sodium atom?
What is the charge of a sodium ion (Na⁺) formed by the loss of one electron from a sodium atom?
What is the difference between a neutral atom and an ion?
What is the difference between a neutral atom and an ion?
Which of the following subatomic particles has no electric charge?
Which of the following subatomic particles has no electric charge?
What determines the position of an element in the periodic table?
What determines the position of an element in the periodic table?
Which of the following is true about the mass of protons and neutrons?
Which of the following is true about the mass of protons and neutrons?
What is the primary function of electrons in chemical reactions?
What is the primary function of electrons in chemical reactions?
Which of the following is a characteristic of isotopes of the same element?
Which of the following is a characteristic of isotopes of the same element?
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 in a neutral atom?
What determines the atomic mass of an element?
What determines the atomic mass of an element?
What is the primary function of the nucleus in an atom?
What is the primary function of the nucleus in an atom?
What is the primary function of the atomic number in an atom?
What is the primary function of the atomic number in an atom?
What is the difference between a carbon-12 atom and a carbon-14 atom?
What is the difference between a carbon-12 atom and a carbon-14 atom?
What is the result of an atom gaining one electron?
What is the result of an atom gaining one electron?
What is the significance of the atomic mass number of an element?
What is the significance of the atomic mass number of an element?
What is the characteristic of the atomic number of an element?
What is the characteristic of the atomic number of an element?
What is the notation for representing an element with an atomic number of 6 and an atomic mass number of 12?
What is the notation for representing an element with an atomic number of 6 and an atomic mass number of 12?
Why do atoms of the same element with different atomic mass numbers exhibit the same chemical properties?
Why do atoms of the same element with different atomic mass numbers exhibit the same chemical properties?
What is the result of an atom losing one electron?
What is the result of an atom losing one electron?
What is the primary reason why isotopes of the same element exhibit the same chemical properties?
What is the primary reason why isotopes of the same element exhibit the same chemical properties?
Which of the following statements is true about the atomic number of an element?
Which of the following statements is true about the atomic number of an element?
What is the result of an atom gaining or losing electrons?
What is the result of an atom gaining or losing electrons?
What is the significance of the atomic mass number of an element?
What is the significance of the atomic mass number of an element?
Which of the following statements is true about cations and anions?
Which of the following statements is true about cations and anions?
What is the difference between the atomic number and the atomic mass number of an element?
What is the difference between the atomic number and the atomic mass number of an element?
What is the notation for representing an element with an atomic number of 6 and an atomic mass number of 14?
What is the notation for representing an element with an atomic number of 6 and an atomic mass number of 14?
What is the primary reason why atoms of the same element have different atomic mass numbers?
What is the primary reason why atoms of the same element have different atomic mass numbers?
What is the primary reason why electrons are fundamental in chemical reactions and bonding?
What is the primary reason why electrons are fundamental in chemical reactions and bonding?
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 in a neutral atom?
What is the primary function of the nucleus in an atom?
What is the primary function of the nucleus in an atom?
What is the characteristic of the mass of protons and neutrons?
What is the characteristic of the mass of protons and neutrons?
What determines the position of an element in the periodic table?
What determines the position of an element in the periodic table?
What is the significance of the atomic number of an element?
What is the significance of the atomic number of an element?
What is the primary difference between isotopes of the same element?
What is the primary difference between isotopes of the same element?
What is the significance of the atomic mass number of an element?
What is the significance of the atomic mass number of an element?
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