2. Atoms & Elements

Which of the following best describes the difference between a diploid cell and a haploid cell?

How many neutrons are in a typical lithium atom with an atomic mass of 7?

Which subatomic particle is found in the nucleus of an atom and has a positive charge?

If the haploid number of sphagnum moss is 19, what is its diploid number?

How many neutrons are in an atom of carbon-12?

How many neutrons does a typical carbon-12 atom have?

How many neutrons are in an atom of lithium with an atomic mass of 7?

Which of these refers to atoms with the same atomic number but different atomic masses?

How many neutrons are present in the isotope lithium-8?

How many neutrons does the isotope nitrogen-15 have?

How many neutrons does a typical magnesium atom have if its atomic number is 12 and its most common isotope has a mass number of 24?

How many neutrons does lithium-8 have?

Which element is commonly used in the radiometric dating of fossils?

How many neutrons does a typical sodium (Na) atom have, given that its atomic number is 11 and its most common isotope has a mass number of 23?

Carbon-12 and carbon-13 are isotopes of carbon. Which of the following statements is correct?