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प्रश्न
State whether the following statements are true or false:
A sodium ion has positive charge because it has more protons than a neutral atom.
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उत्तर
False. A sodium ion carries a positive charge because it has less number of electrons than a neutral atom.
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संबंधित प्रश्न
What are polyatomic ions? Give examples.
Write the symbols and valencies of the following radicals:
- Magnesium ion
- Ammonium
- Carbonate
- Nitrate
- Oxide
- Bisulphate
- Aluminium ion
Fill in the following blank with suitable word:
A potassium ion has positive charge because it contains less............... than.....................
What is the difference between a cation and an anion ? Explain with examples.
Write the basic radicals and acidic radicals of the following and then write the chemical formulae of these compound.
Sodium zincate
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?
Nickel
State if the following element or radical is divalent?
Ammonium
Atoms that carry positive or negative charges are called ______.
