if the element donates electrons then it is called a metal.
eg. sodium, iron,etc.
In order to know what a metal object is on a dorm wall one would need more information. If a description of the metal object is given one may be able to determine what the object is.
Density is the mass of the object divided by its volume. By this principle, to determine the density of a metal, place the metal onto a scale to measure its mass. After this, place the metal into a beaker of water and measure the volume change in the beaker. Divide the mass by the volume and you get the density.
the metal object becomes a temporary magnet
You can use a ruler to determine how long a object is
The mass divided my the volume determine the density of an object
[object Object]
The heat of the object heats the metal tip and heats the liquid inside (usually mercury) until it expands, thereby filling the thermometer. Various tests are performed to determine at what length is what temperature.
The formula for density is an object's mass, divided by its volume. If you have both those quantities, you can determine the object's density.
one method is to digest the metal using an acid and then use atomic absorption spectroscopy to determine which metal and how much of that metal is present in the solution. You can then work backwards to determine how much of a particular metal was in your sample (you need to know how much metal was used to make the solution).
shape ,physical properties, status of an object
A Reference Point A reference point is needed to determine if an object is in motion.
A reference point must be chosen to determine the motion of an object.