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Elements with valency 1 are...

Elements with valency 1 are

A

always metals

B

always metalloids

C

either metals or non-metals

D

always non-metals

Text Solution

Verified by Experts

The correct Answer is:
C
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S CHAND IIT JEE FOUNDATION-ATOMIC STRUCTURE-QUESTION BANK-20
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  2. The ion of an element has 3 positive charges. The mass number of atom ...

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  3. How many electrons does an atom with an atomic number of 20 and a mass...

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  6. Elements with valency 1 are

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  7. Use the following terms to create a concept map atom, nucleus, prot...

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  8. Complete the following sentences by choosing the correct term from th...

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  9. Complete the following sentences by choosing the correct term from th...

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  10. The statements below are false. For each statement, replace the underl...

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  11. The statements below are false. For each statement, replace the underl...

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  12. Compare nuclear fission with nuclear fusion.

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  13. Imagine that a uranium nucleus splits and releases three neutrons and ...

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  14. Which of the following is a use of radioactive material?

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  15. Which particle both begins and is produced by a nuclear chain reaction...

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  16. Which statement about nuclear fusion is false?

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  17. In fission, the products have less mass than the starting materials do...

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  18. Explain why nuclei of carbon, oxygen, and iron can be found in stars

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  19. What are two dangers associated with nuclear fission?

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  20. Solve the following crossword with the help of the given clues.

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