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The element/s named after countries and ...

The element/s named after countries and laboratories is/are:

A

Ruthenium

B

Americium

C

Berkelium

D

Californium

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BEIITIANS-BASICS OF CHEMISTRY -SUMMATIVE WORKSHEET
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  11. The element/s named after scientists are

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  12. The element/s named after countries and laboratories is/are:

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  13. The elements named after the name of the planets are :

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  14. Atom consist of electrons , protons and neutrons . If the mass attribu...

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  15. The atoms of all the elements contains electrons, protons and neutrons...

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  17. Why does an atomic number not change during a chemical reaction.

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  18. Find the number of electrons , protons In Fluoride ion

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  19. Find the number of electrons , protons In Sulphate ion

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  20. Mass number of chlorine is 35.5 True/False.

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