Explanation:
option option B is the correct answer of given statement helium-4(He)=2
Answer:
May you post a picture for us to understand?
Answer:
can be you nice people my friend bother my sister community of college students who have had some experience in this industry and maddie intro and maddie highlights
Ca²⁺ion has a lower ratio of charge to volume.
The charge density of an ion is defined as the ratio of the charge of an ion to its volume. Scandium ion has high charge density than calcium ions. The charge density of an ion is defined as the ratio of the charge of an ion to its volume.
Charge density also depends on the size of the ion and valence electrons. The volume of an ion increases with its size. It is inversely proportional to ion volume and directly proportional to charge magnitude. Scandium and calcium are IV periodic elements with atomic numbers of 21 and 20 respectively. Scandium loses three electrons and has a +3 charge and calcium is a divalent cation. Hence, the Scandium ion has high charge density than the calcium ion.
Learn more about charge density here: brainly.com/question/12968377
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