Advertisements
Advertisements
Question
Give the symbol and valency of the following element and radical.
Sulphate
Advertisements
Solution
| Element/Radical | Symbol | Valency |
| Sulphate | \[\ce{SO4}\] | two |
APPEARS IN
RELATED QUESTIONS
Name the scientist who first of all showed that atomic number of an element is a more fundamental property than its atomic mass.
Give two example of group 17 elements.
How many groups and periods does the modern periodic table have?
How does the electronic configuration of an atom relate to its position in the modern periodic table?
State the main aim of classifying elements. Which is the more fundamental property of elements that is used in the development of Modern Periodic Table? Name and state the law based on this fundamental property. On which side of the periodic table one can find metals, non-metals and metalloids?
Compare Modern Periodic Law with Mendeleev's Periodic Law.
Distinguish between:
Group 17 - Group 18
The arrangement of elements in the Modern Periodic Table is based on their ______.
Name two elements that you would expect to show chemical reactions similar to calcium. What is the basis of your choice?
A group of elements in the periodic table is given below (Boron is the first member of the group and Thallium is the last).
Boron, Aluminium, Gallium, Indium, Thallium
Answer the following question in relation to the above group of elements:
If the electronic configuration of aluminium is 2, 8, 3, how many electrons are there in the outer shell of thallium?
