Podcast Beta
Questions and Answers
Define atomic mass, atomic number, and atomic weight.
Atomic mass is the average mass of all the different forms of an element that exist on the planet. Atomic number is the number of protons found in an atom. Atomic weight is the weighted average of all naturally occurring isotopes of an element.
How is average atomic mass calculated?
Average atomic mass of an element is calculated by considering the weighted average of all naturally occurring isotopes of an element. It is found by multiplying the mass number of each isotope by its percent abundance, and then summing up these values.
What does the atomic number represent?
The atomic number represents the number of protons found in an atom. It is also the most critical piece of information that exists about an atom.
Can the atomic number of an element change?
Signup and view all the answers
What is the mass of the most common isotope of hydrogen?
Signup and view all the answers
What is the mass of the deuterium isotope of hydrogen?
Signup and view all the answers
What is the mass of the tritium isotope of hydrogen?
Signup and view all the answers
What is the atomic weight of hydrogen?
Signup and view all the answers
What is the average atomic mass (atomic weight) on the periodic table based on?
Signup and view all the answers
What is the atomic weight of hydrogen on the periodic table?
Signup and view all the answers
What is the atomic weight of lithium on the periodic table?
Signup and view all the answers
Which lithium isotope is likely to be more common in nature?
Signup and view all the answers
What is the mass number of an atom?
Signup and view all the answers
What is the formula for calculating atomic mass?
Signup and view all the answers
What is an isotope?
Signup and view all the answers
How is atomic mass different from atomic weight?
Signup and view all the answers
What is the formula for calculating the atomic weight of an element?
Signup and view all the answers
What is an isotope of an element?
Signup and view all the answers
What is the average atomic mass?
Signup and view all the answers
What is the mass of a hydrogen atom?
Signup and view all the answers