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प्रश्न
Non-metal conducting electricity :______ :: Metal conducting electricity : Copper
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उत्तर
Non-metal conducting electricity : Graphite :: Metal conducting electricity : Copper
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संबंधित प्रश्न
Why is it necessary to separate the constituents of a mixture.
Name: Two substances used to make jewellery.
Differentiate between the terms –
elements, compounds & mixtures.
The important physical properties of substances are colour, odour, nature, density & solubility in water.
Name – two coloured gases (with their colours)
Draw a labelled diagram of an atom including its nucleus, orbits & their contents.
Complete the statement given below by filling in the blank with the correct word.
The basic unit of an element is an __________.
Write the names of elements from the following symbol:
Fe
Give a reason for the following statement :
The filter paper made into a cone & placed in a funnel for filtering out the solid particles in a solid-liquid mixture should be moistened before placing it.
Higher Order Thinking Skills.
In the diagram given below, the circle, square and triangle represent the atoms of different elements.
Identify all combinations that represent
- molecule of a compound
- molecule of an element consisting of two atoms
- molecule of an element consisting of three atoms
Complete the table:
| Element | Latin Name | Symbol |
| Mercury | ______ | Hg |
| Lead | Plumbum | ______ |
| Iron | ______ | Fe |
| Potassium | Kalium | ______ |
