Podcast
Questions and Answers
What do carbon-12 and carbon-13 differ in?
What do carbon-12 and carbon-13 differ in?
- Number of neutrons (correct)
- Number of protons
- Number of nucleus
- Number of electrons
What is the main difference between oxygen-16 and oxygen-18?
What is the main difference between oxygen-16 and oxygen-18?
- Number of nucleus
- Number of protons
- Number of neutrons (correct)
- Number of electrons
Which statement best describes the composition of ions?
Which statement best describes the composition of ions?
- They are stable isotopes
- They are charged atoms or molecules (correct)
- They are a form of nuclear reaction
- They are a type of subatomic particle
In an atom with 20 protons, 20 electrons, and 25 neutrons, what is its mass number?
In an atom with 20 protons, 20 electrons, and 25 neutrons, what is its mass number?
What is the number of electrons in an atom with 30 protons and 35 neutrons?
What is the number of electrons in an atom with 30 protons and 35 neutrons?
Which ion has 18 protons and 16 electrons?
Which ion has 18 protons and 16 electrons?
Which of the following states of matter has the strongest intermolecular attractive forces?
Which of the following states of matter has the strongest intermolecular attractive forces?
What is the physical process that results in the transition of a substance from a solid to a liquid state?
What is the physical process that results in the transition of a substance from a solid to a liquid state?
What is the physical process that results in the transition of a substance from a liquid to a gas state?
What is the physical process that results in the transition of a substance from a liquid to a gas state?
Which of the following molecules have an unequal or asymmetrical distribution of electrons among the atoms in the molecule?
Which of the following molecules have an unequal or asymmetrical distribution of electrons among the atoms in the molecule?
Which of the following is the weakest type of intermolecular force?
Which of the following is the weakest type of intermolecular force?
What type of chemical bond is the electrostatic attraction between an ion and a neutral molecule that has a dipole?
What type of chemical bond is the electrostatic attraction between an ion and a neutral molecule that has a dipole?
Which of the following is true about isotopes?
Which of the following is true about isotopes?
Which of the following statements about carbon-12 and oxygen-14 is correct?
Which of the following statements about carbon-12 and oxygen-14 is correct?
What is the difference between oxygen-16 and oxygen-17?
What is the difference between oxygen-16 and oxygen-17?
Which of the following is an example of a positive ion?
Which of the following is an example of a positive ion?
Which of the following elements has the most stable isotope?
Which of the following elements has the most stable isotope?
