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प्रश्न
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..............
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उत्तर
Particle formed by losing or gaining electrons by its atom is called ion.
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संबंधित प्रश्न
How many atoms are present in a PO43− ion?
What are polyatomic ions? Give examples.
A liquid compound X of molecular mass 18 u can be obtained from a number of natural sources. All the animals and plants need liquid X for their survival. When an electric current is passed through 200 grams of pure liquid X under suitable conditions, then 178 grams of gas Y and 22 grams of gas Z are produced. Gas Y is produced at the positive electrode whereas gas Z is obtained at the negative electrode. Moreover, gas Y supports combustion whereas gas Z burns itself causing explosions.
- Name (i) liquid X (ii) gas Y, and (iii) gas Z.
- What is the ratio of the mass of element Z to the mass of element Y in the liquid X ?
- Which law of chemical combination is illustrated by this example ?
- Name two sources of liquid X.
- State an important use of Y in our life.
State whether the following statements are true or false:
A sodium ion has positive charge because it has more protons than a neutral atom.
What is the name of a particle which contains 10 electrons, 11 protons and 12 neutrons ?
Write the basic radicals and acidic radicals of the following and then write the chemical formulae of these compound.
Chromium sulphate
Choose the correct answer from the options given below.
The number of carbon atoms in a hydrogen carbonate radical is
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?
Bromide
