Does sodium share its electron with chlorine?
NaCl is table salt, but is it held together by sharing or by moving an electron? Trace the transfer and the attraction.
Try this lessonFind the step that makes it click.
Pick a topic in math, science, chemistry, or writing. Try an example, get a clue, and practise at your pace.
No account or card needed. Practice answers stay on this page and aren’t saved.
2 lessons for “Ionic bonds”
Is it sodium chloride or sodium chlorine?
Two words and two numbers stand between you and a correct ionic name or formula. Learn the rule, then balance the charges.
Try this lessonAlso close
When two nonmetals meet, do they share or transfer?
Hydrogen cannot pull an electron away from hydrogen, so the two atoms do something smarter: they share. Count the pairs.
Try this lessonWhich prefix: mono, di, or tri?
Carbon dioxide and carbon monoxide both start with carbon. The prefixes are the only thing telling them apart, so get them right.
Try this lessonWhy isn't the mass number just the neutrons?
An atom with 17 protons and 18 neutrons: is its mass number 35 or 18? And what is its charge? Work through the counting rules one blank at a time.
Try this lessonTry a step. See what clicks.
Work through an example, ask for a clue when you need one, then try a new question on your own.
Browse by subject
All of math, science, chemistry and writing lessons or search across the whole library above.
Learn by trying
Fill in one step at a time and check your answer. Need help? Tap “Give me a clue.”
Treat these examples as a starting point for a conversation, not as a replacement for your teacher’s guidance.
Need help with your own question? See how the family service works