Help me solve this density question

1.03 grams / mL

Explanation:

Mass of beaker and sample liquid = 84.64

Mass of beaker                                = 32.344

Mass of the sample (subtract)        =  52.296

Don't do any rounding until you are finished.

mass = 52.296 grams

volume = 50.6 mL

density = mass / volume

density = 52.296/50.6

density = 1.034 grams / mL

Rounding

The volume only has 3 dig digs

So the answer is 1.03 grams / mL

particle   p is an electron and particle q is a neutron

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.