Question

1)
Selenium and sulfur are in Group VI. They have similar properties.
The electron distribution of a selenium atom is 2 + 8 + 18 + 6.
(i) Selenium forms an ionic compound with potassium. Draw a diagram which shows
the formula of this ionic compound, the charges oi
this ionic compound, the charges on the ions and the arrangement of
the valency electrons around the negative ion.
Use o to represent an electron from an atom of potassium.
Use x to represent an electron from an atom of selenium.​

Answer 1

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