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.
A measured amount of water is used in determining the specific heat of a metal object because water has a well-defined specific heat capacity (1 calorie/gram °C) and is readily available. By measuring the temperature change of a known mass of water when a metal object is immersed in it, and knowing the specific heat of water, we can calculate the specific heat of the metal object.
The density of a metal is a measure of how tightly packed its atoms are. Mass is a measure of the amount of matter in an object. Together, density and mass determine the physical properties and behavior of a metal, such as its weight, strength, and conductivity.
When you rub a magnet with metal, the metal object becomes temporarily magnetized. This happens because the atoms in the metal align with the magnetic field of the magnet. However, once the magnet is removed, the metal object loses its magnetism.
You can determine if an object is magnetic by using a magnet to see if the object is attracted to it. If the object is attracted to the magnet, it is magnetic.
You can use a ruler to determine how long a object is
[object Object]
The electrons in the metal object are repelled by the negatively charged object and will move away from it. This redistribution of electrons can create a temporary separation of charges on the surface of the metal object.
The type of matter that makes up an object is its material composition, such as metal, plastic, or wood. The arrangement of this matter refers to how the atoms and molecules are organized within the object, which can determine its properties and characteristics.
The mass divided my the volume determine the density of an object
Heat transfers to, and from, any object, not just metal object. Metals in general are very good conductors of heat; as a result, you might feel the temperature more easily when you touch a metal object. If you get burned more easily by a metal object than by a wooden object, for example, both at the same temperature, this is a direct result of heat conduction.