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प्रश्न
In the given figure, you find that the bulb glows when an iron nail is placed between two ends of wire. Complete the following sentences on the basis of this fact.
- ______ is a metal.
- Metals are good ______ of electricity.
उत्तर
- Iron is a metal.
- Metals are good conductors of electricity.
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संबंधित प्रश्न
The atomic number of an element Y is 16.
(a) What must an atom of Y do to achieve the nearest inert gas electron arrangement?
(b) Which inert gas is nearest to Y?
State two important uses of following metals:
Uses of iron
Write name.
Alloy of sodium with mercury.
What is it made from? Why?
Electric cables
Write the name.
Two highly reactive metals-
Halogen reacts with acid.
Electronic configuration of metal A is 2,8,1. Electronic configuration of metal B is 2,8,8,2. Which of the above metals is more reactive? Explain with reason.
The electronic configurations of three elements X, Y and Z are X – 2, 8; Y – 2, 8, 7 and Z – 2, 8, 2. Which of the following is correct?
Give an example of a metal which
- is liquid at room temperature.
- is the best conductor of heat.
All gases are ______.
