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प्रश्न
Give two examples of the following.
Non-metals which are lustrous
एका वाक्यात उत्तर
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उत्तर
Radium, Graphite
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संबंधित प्रश्न
Classify the following substances into compounds and mixtures:
Tick the most appropriate answer.
How many times is a proton heavier than an electron?
- 1500
- 1800
- 1840
- none of these
Name: a Liquid Non-metal
Define a pure substance. How many types of pure substances do you know?
Define:
Atomicity
Tick (√) the correct alternative from the choice given for the following statement.
Sand is a compound of
Write the names of elements from the following symbol:
Cu
Matter is its simplest form is called ______.
Complete the table:
| Element | Latin Name | Symbol |
| Mercury | ______ | Hg |
| Lead | Plumbum | ______ |
| Iron | ______ | Fe |
| Potassium | Kalium | ______ |
Reason out
Elements are called semimetals.
