Question

11. An electron configuration of an unknown element is 85. How many electrons can it lose if it reacts with a
nonmetal?
1
b. 2
d. 4
12. An unknown gaseous element readily accepts one electron when it reacts with a metal and form a salt. To
what family in the periodic table does it belong?
Alkali metals b. alkaline earth metals c. noble gases d. halogens
13. Which is the most metallic element?
Ba
b. Li
c. Ag
d. Si
14. Metals like gold, silver, and platinum are unreactive which makes them suitable as jewelries or coins, these
metals are called
Coinage metals
b. noble gases
c. halogens
d. alkali metals
15. The horizontal rows of elements in the periodic table is called
Period
b. groups
c. shells
d. orbitals
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Answer 1

Explanation:

Question is quite big.!