Advertisements
Advertisements
Question
State whether the following ion or radical given below of a non-metallic element exhibits valency: 1–, 2– or 3–. (write the ion or radical with the correct valency).
Sulphate
Advertisements
Solution
| Name | Symbol | Ion | Valency |
| Sulphate | \[\ce{SO4}\] | \[\ce{[SO4]^{2-}}\] | −2 |
APPEARS IN
RELATED QUESTIONS
Define: Compounds
Name the element used as a standard for atomic mass scale.
Give two symbols which have been derived from the " Latin names" of the elements.
The atomic number of an element X is 13. What will be the number of electrons in its ion X3+ ?
The formula of the sulphate of an element M is M2(SO4)3
Write the formula of it
Chloride
Match the noble gases – with their correct symbols:
| Noble gases | Symbols |
| (a) Helium | (1) Ar |
| (b) Neon | (2) Xe |
| (c) Argon | (3) Rn |
| (d) Krypton | (4) He |
| (e) Xenon | (5) Kr |
| (f) Radon | (6) Ne |
Give a reason why elements are tabulated in a table called the ‘Periodic table’.
Give the symbol of the following element:
Zinc
State the type of element for the following:
Lead
Write a note on Greem symbols.
