https://or.khanacademy.org/science/revision-odisha-class-9-science/xb979aa6db51c2cdc:week-2/xb979aa6db51c2cdc:structure-of-atom/e/atomic-structure 2026-04-04T15:15:10.079366741Z ପରମାଣୁର ଗଠନ Test your knowledge of atomic structure! Ashley exercise https://or.khanacademy.org/science/revision-odisha-class-9-science/xb979aa6db51c2cdc:week-2/xb979aa6db51c2cdc:structure-of-atom/e/electron-distribution-in-an-atom-and-calculation-of-valency 2026-04-07T15:45:31.234781453Z ଏକ ପରମାଣୁ/ଆୟନରେ ଇଲେକ୍ଟ୍ରନ ବଣ୍ଟନ ଏବଂ ଯୋଜ୍ୟତା ନିରୂପଣ Let's solve a few problems to calculate valency and see how electrons are distrubuted in an atom. Aanchal Arora exercise https://or.khanacademy.org/science/revision-odisha-class-9-science/xb979aa6db51c2cdc:week-2/xb979aa6db51c2cdc:structure-of-atom/e/isotopes-and-isobars 2024-06-04T09:29:17.69709831Z ଆଇସୋଟୋପ୍ ଏବଂ ଆଇସୋବାର୍ Let's solve a few problems to understand the concept of isotopes and isobars. Aanchal Arora exercise