The Atomic Mass or weight of an isotope of an element is the total number of protons and neutrons in its nucleus. The number of protons defines which element it is, this is called the atomic number. For uranium for example it is 92, but the atomic weight can be from 233 to 238, and these different versions of uranium are called isotopes.
See Periodic Table for more details of all the elements.
Add the no. of neutrons and the no. of protons to get the atomic mass.
You can "figure out" by checking the periodic table :D
You can "figure out" by checking the Periodic Table :D
Mass divided by Volume
Mass divided by density
A square or a rectangle is a 2-dimensional figure. It can have no mass.
there is not enough information to figure this one out, You need the volume (or if you know the elements its made out of , you can figure it out through molar mass)
I assume you mean "center of mass". The center of mass is just a position in space; that's not enough information to figure out the area.
it's 0! and i am sure about that!
The mass of 1 mL of water is 1 g.
E= MC square
A nanogram does not have sides, as it is a unit of measurement used to represent one billionth of a gram. In geometry, a gram is a unit of mass and does not have sides. Therefore, a nanogram, being a fraction of a gram, does not possess any geometric properties such as sides.
Mass number will help you. Mass number is the total of neutrons and protons.