Amy watches as her teacher adds a small piece of sodium to water. She makes these
observations.

The sodium moves around on the surface of the water
Bubbles are formed.
After the reaction finished, the teacher added Universal
Indicator to the solution. The indicator went purple.

a) Explain what the bubbles show?
b )Explain why the indicator went purple?
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metals are good conductor of electricity. it has free electrons on their surface. according to electron pool theory, each atom present in a metal crystal losses all of its valence electron and as a result a pool of free is form. these pool of electrons are free to move and   conduct electricity easily   while making metal as good conductor.

the correct answer is a. the ability of electrons to flow throughout the metal.

if it's not useful, feel free to report for mistake in answer.

the answer is 0.8m.

by: nicholas

it is stable as it is in group 0 which have full outer shells of electrons