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Three elements B, Si and Ge are...

Three elements B, Si and Ge are

A

metals

B

non-metals

C

metalloids

D

metal, non-metal and metalloid respectively

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The correct Answer is:
C
The element boron (B), silicon (Si) and germanium (Ge) are metalloids. In the periodic table, metals have been separated from non-metals by some elements called 'metalloids' which are placed diagonally in the periodic table. These metalloids are B, Si, Ge, As (arsenic), Sb (antimony), Te (tellurium) and (Po) polonium.
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NCERT EXEMPLAR-PERIODIC CLASSIFICATION OF ELEMENTS-Periodic Classification Of Elements
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  2. What type of oxide would Eka-aluminium form ?

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  3. Three elements B, Si and Ge are

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  4. Which of the following elements will form an acidic oxide ?

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  5. The element with atomic number 14 is hard and forms acidic oxide and a...

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  6. Which one of the following depict the correct representation of atomic...

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  7. Which one of the following does not increase while moving down the gro...

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  8. On moving from left to right in a period in the periodic table, the si...

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  9. Which of the following set of elements is written in order of their in...

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  10. The three elements A, B and C with similar properties have atomic mass...

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  11. Elements have been arranged in the following sequence on the basis of ...

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  12. Can the following groups of elements be classified as Dobereiner's tri...

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  13. In Mendeleev's periodic table, the elements were arranged in the incre...

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  14. Hydrogen occupies a unique position in modern periodic table. Justify ...

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  15. Write the formulae of chlorides of Eka-Silicon and Eka-aluminium, the ...

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  16. Three elements A, B and C have 3,4 and 2 electrons respectively in the...

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  17. If an element X is placed in group 14, what will be the formula and th...

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  18. Compare the radii of two species X and Y. Give reasons for your answer...

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  19. Arrangement the following elements in increasing order of their atomic...

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  20. Identify and name the metal out of the following elements whose electr...

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