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प्रश्न
Select the correct answer to the statement given below:
A metalloid
पर्याय
Chalk
Oxygen
Silicon
Bromine
Nitrous oxide
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उत्तर
Silicon
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संबंधित प्रश्न
Write the Chemical Name of the Following and Also Give Their Molecular Formulae:
Vinegar
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Calcium Chloride
Fill in the blank
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Indicate whether the following statement is true or false:
Elements are made up of compounds
Tick (√) the correct alternative from the choice given for the following statement.
Brass and bronze are
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Elements are classified into – Metals – Non-metals – Metalloids – Noble gases. State which of A, B, C, D is a –
1. Metallic element
2. Non-metallic element
3. Metalloid
4. Noble gas.
A: Is non-malleable, non-ductile & a poor conductor of electricity ___________
B: Has lustre, is malleable and ductile & a good conductor of heat ___________
C: Is unreactive and inert and present in traces in the air _________
D: Shows properties of both metals and non-metals ___________
Give the name of the radical - SO4
Complete the statement given below by filling in the blank with the correct word.
An element is a pure substance which cannot be broken down by physical or _________ methods.
Complete the statement given below by filling in the blanks with the correct words.
Atom contains ________ , with positively charged _____.
Select the correct answer from the choice given below.
The type of molecule- bromine
Write the names of elements from the following symbol:
Zn
Write the names of elements from the following symbol:
Ir
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State true of false. If false, give the correct statement.
Two different elements may have similar atoms.
Water contains _____ and _____ element.
Give two example of elements.
