Loading the lesson
Loading the lesson
Search AllRounder.ai
Search the courses, subjects, tracks, games and features, or jump straight to a page.
Search the courses, subjects, tracks, games and features, or jump straight to a page.
2 cards from this section. Quick, good the night before a test.
Define the term isotope.
Think about what makes elements behave differently.
What is average atomic mass?
Consider how weights might be applied to different quantities.
What is the average atomic mass?
Think about how averages work!
Is the average atomic mass the same as the mass number?
Reflect on definitions of both terms.
Calculate the average atomic mass of silicon, which has four isotopes: 28Si (97.3%), 29Si (1.1%), 30Si (0.7%). Give answers in atomic mass units.
Use the same process as with carbon's isotopes!
Explain why knowing the average atomic mass is crucial for finding molecular weights in chemical reactions?
Remember how precise amounts affect reactions.
5 more questions in this section. Enroll free to practise them all.
Enroll free