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प्रश्न
There are ______ number of known elements.
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उत्तर
There are 118 number of known elements.
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संबंधित प्रश्न
Give one example for the following type of mixtures
solid-solid homogenous mixture.
State four differences between compounds and mixtures.
Give two examples of Metalloids.
Tick (√) the correct alternative from the choice given for the following statement.
The most abundant elements in the universe are
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 ___________
Complete the statement given below by filling in the blank with the correct word.
Element ______ has the symbol derived from its Latin name ‘Argentum’
Write the names of elements from the following symbol:
Zn
Elements are made up of______ kinds of atoms.
The first letter of an element is always written in ______ letter.
Name the process associated with the following
A fine beam of light entering through a small hole in a dark room illuminates the particles in its paths.
