Advertisements
Advertisements
Question
Fill in the following blank with suitable word:
A potassium ion has positive charge because it contains less............... than.....................
Solution
A potassium ion carries a positive charge because it contains less number of electrons than protons.
APPEARS IN
RELATED QUESTIONS
Write the symbols and valencies of the following radicals:
- Magnesium ion
- Ammonium
- Carbonate
- Nitrate
- Oxide
- Bisulphate
- Aluminium ion
The valency of calcium is 2. Write the valencies of other radical in the following :
- CaO
- Ca(OH)2
- CaC03
- CaCl2
Tick (√) the correct answer.
The sulphate radical is written as S042-. What is the formula of calcium sulphate ?
Name the particle which has 18 electrons, 18 neutrons and 17 protons in it.
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..............
An element X has a valency of 2. Write the simplest formula for oxide of the element.
What is the difference between a cation and an anion ? Explain with examples.
Give example.
Basic radicals
Write the basic radicals and acidic radicals of the following and then write the chemical formulae of these compound.
Sodium zincate
Fill in the blank:
A radical with one atom of sulphur and three atoms of oxygen are __________.
