Advertisements
Advertisements
Question
Give the chemical formula of sodium sulphite
Advertisements
Solution
It denotes in a compound, the number of atoms of element present.
∴ Formula = \[\ce{Na2SO3}\]
APPEARS IN
RELATED QUESTIONS
Write the names given to the vertical columns and horizontal rows in the Modern Periodic Table. How does the metallic character of elements vary on moving down a vertical column? How does the size of atomic radius vary on moving left to right in a horizontal row? Give reason in support of your answer in the above two cases.
The three elements having chemical symbols of Si, B and Ge are:
(a) all metals
(b) all non-metals
(c) all metalloids
(d) Si is metalloid, B is metal and Ge is non-metal
What is the usual number of valence electrons and valency of group 18 elements of the periodic table?
Name the type of elements which have one electron short of octet.
Give the symbol and valency of the following element and radical.
Oxygen [Oxide]
Find the odd one out and give its explanation.
The element with atomic number 14 is hard and forms acidic oxide and a covalent halide. To which of the following categories does the element belong?
Choose an element from period 3 of modern periodic table that matches the description given below in instance. Give a reason for your choice.
It has same valency as Lithium.
Explain the position of hydrogen in the periodic table.
Give the criteria on the basis of which elements are placed (i) in a group and (ii) in a period in the modern periodic table. The atomic number of an element is 16. According to the criteria, in which group and period it should be placed?
