yes they are.
Atoms and molecules
yes they are.
Atoms are the tiny particles that make up an element. Each atom consists of a nucleus containing protons and neutrons, surrounded by electrons orbiting the nucleus.
It would be inaccurate because atoms are made of subatomic particles, which actually make up the element. These subatomic particles have either a positive, negative, or neutral charge. The positively charged particles are called protons. The negatively charged particles are called electrons. The neutral particles are called neutrons. The protons and neutrons are grouped together in the nucleus of an atom, with the electrons orbiting around.
Yes, everything is made of tiny particles - if it is an element then the particles are atoms of that element, if it is a compound then the particles are molecules composed of atoms of the elements which make up the compound.
It is an element but also can be a mixture because it has silicon and copper in it to make aluminum foil. Some of these people cant give the right answers!! ;P
Finer particles will blend more perfectly. Coarser particles will make a less homogenous mixture.
Scandium
A copper door knob is a mixture of copper and other elements or compounds that form the alloy used to make the door knob. Copper itself is an element, but when combined with other elements or compounds to form an alloy, it becomes a mixture.
The atom is the smallest particle of an element that retains it's characteristics. Sub-atomic particles such as protons, neutrons and electrons form the atom and it is the amount of each of these sub-atomic particles that make the element that element.
usually a mixture of tin and lead metals are used
The number of protons