Which of these best arranges the planets in the solar system in the increasing order of their period of rotation?
select one:
a. jupiter → uranus → mars → mercury
b. mars → venus → earth → mercury
c. neptune → saturn → jupiter → uranus
d. uranus → jupiter → neptune → saturn

The correct answer is option A, Jupiter → Uranus → Mars → Mercury

Explanation:

Time taken by Jupiter to make one rotation = 9h 56m

Time taken by Uranus to make one rotation = 17h 14m

Time taken by Neptune to make one rotation = 16h 6m

Time taken by Mars to make one rotation = 1d 0h 37m

Time taken by Earth  to make one rotation = 23 hours, 56 minutes, and 4 seconds

Time taken by Saturn to make one rotation = 0d 10h 42m

Time taken by Venus to make one rotation = 116d 18h 0m

Time taken by Mercuryto make one rotation = 58d 15h 30m

Thus the correct order is option A,  

Jupiter (9h 56m)< Uranus(17h 14m)< Mars(1d 0h 37m) <Mercury (58d 15h 30m)

yes it is balanced

explanation:

metals have excess of electrons whereas non-metals have deficiency of electrons. thus, in order to gain stability metals easily donate their electrons to the non-metals.

for example, electronic configuration of sodium is and electronic configuration of phosphorous is .

when a phosphorous atom and sodium atom combine together then sodium will donate is extra one electron to the phosphorous atom. as a result there will be formation of ionic bond between sodium and phosphorous.

the reaction will be as follows.

there, are three sodium sodium atoms and each of them will donate its one extra electron to phosphorous atom. thus, the sub-shell of phosphorous gets completely filled.  

thus, we can conclude that electrons are transferred from atoms of sodium to atoms of phosphorous. this transfer makes the sodium atoms donate one electron and the phosphorous atoms to gain one electron. as a result, the sodium and phosphorus atoms strongly attract each other.