Everything You Need in One Place
Homework problems? Exam preparation? Trying to grasp a concept or just brushing up the basics? Our extensive help & practice library have got you covered.
Learn and Practice With Ease
Our proven video lessons ease you through problems quickly, and you get tonnes of friendly practice on questions that trip students up on tests and finals.
Instant and Unlimited Help
Our personalized learning platform enables you to instantly find the exact walkthrough to your specific type of question. Activate unlimited help now!
Make math click 🤔 and get better grades! 💯Join for Free
- Use information in the Periodic Table to find the number of sub-atomic particles in elements.
How many electrons are in an atom of the following species?
- Identify atoms and their charge when given the number of sub-atomic particles.
Identify the element and the charge on the particle described below.
- Find out the number of sub-atomic particles when given ions and their charge.
Find the number of protons and electrons in the following species: