2. Atoms & Elements

An atom's mass number is 13 and its atomic number is 6. How many neutrons are in its nucleus?

How many neutrons are present in a typical lithium atom?

How many protons are present in an atom of potassium-29?

Which of the following statements describes an isotope?

Which element has a mass number of 7 and contains 3 protons?

How many neutrons does a typical lithium atom have?

How many neutrons does a lithium atom with a mass number of 7 have?

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?