Advertisements
Advertisements
Question
An element X has a valency of 2. Write the simplest formula for bromide of the element.
Advertisements
Solution
Valency of X = 2
Valency of Br = 1
Formula for bromide of element X can be worked out by crossing the valencies of the constituent elements.
Therefore, formula for bromide of X is: XBr2.
APPEARS IN
RELATED QUESTIONS
Name the following radicals :
OH
Write the names of ZnS compounds :
What is the name of a particle which contains 10 electrons, 11 protons and 12 neutrons ?
Fill in the following blank with suitable word :
The particle which is formed by the gain of electrons by an atom is called ..............
Fill in the following blank with suitable word:
The particle which is formed by the loss or gain of electrons by an atom is called..............
The valencies (or charges) of some of the ions are given below :
Ion Valency Ion Valency (Charge) (Charge)
Sodium ion 1+ Nitrate ion 1–
Copper ion 2+ Sulphide ion 2–
Using this information, write down the formulae of :
- Sodium sulphide
- Copper nitrate
Give example.
Positive radicals
Differentiate between the following with suitable examples- A basic radical and an acid radical
State if the following element or radical is divalent?
Lithium
State if the following element or radical is divalent?
Dichromate
