MyQuestionIcon

1

You visited us 1 times! Enjoying our articles? Unlock Full Access!

Ionic Compounds Chemical Formula

explain why d...

Question

explain why does calcium ion have charge +2

Open in App

Solution

Because it is an alkaline earth metal with a valency of 2.
Thus, it loses 2 electrons to attain valence shell configuration and form Ca²⁺.

Suggest Corrections

thumbs-up

0

Similar questions

Q. (a) What is an ion ? How is an ion formed ? Explain with the help of two examples of different ions.
(b) The valencies (or charges) of some of the ions are given below :

Ion	Valency (Charge)	Ion	Valency (Charge)
Sodium ion	1+	Bromide ion	1–
Ammonium ion	1+	Hydroxide ion	1–
Calcium ion	2+	Sulphate ion	2–
Lead ion	2+	Phosphate ion	3–

Using this information, write down the formulae of the following compounds :
(i) Sodium phosphate
(ii) Ammonium sulphate
(iii) Calcium hydroxide
(iv) Lead bromide

Q. Why must a cell be made 'competent' in biotechnology experiments? How does calcium ion help in doing so?

Q. When a group IIA atom forms an ion, what charge does it have?

Why does dry HCL gas does not have any hydrogen ions?

What makes hydroxide ion act as nucleophile and why does it get an overall charge of -1?

View More

Join BYJU'S Learning Program

similar_icon

Related Videos

lock

Ionic Compounds Chemical Formula

CHEMISTRY

Watch in App

explore_more_icon

Explore more

Ionic Compounds Chemical Formula

Standard VI Chemistry

Join BYJU'S Learning Program

CrossIcon