It is a mixture
A reel of solder used for joining electrical circuits together on circuit boards. Solder is made of a mixture of tin and lead and sometimes has has flux (a form of acid) in the core of the solder to ensure a clean surface for the solder to flow into.
Scandium
usually a mixture of tin and lead metals are used
Tin could be in a mixture with lead to form the solder. Solder is used to hold the components to the printed circuit board.
Solder can be configured with several different types of metals. For instance, silver solder would contain a portion of silver along with another metal. Common electrical solder usually contains a mixture of tin and lead in the ratio of 60/40. That too can vary if the manufacturer wants to make a solder that requires a higher tempreature to melt it.
Solder is a mixture of various metals. Its physical property is that it melts at fairly low temperatures, not so low that it melts when this is undesired. Its reactions are the same as the component metals.
Because it melts easily and is good in a solder mixture to hold wires together.
Solder is a mixture of various metals and elements that have a melting point lower than the metal that is intended to be brazed. Some of these metals are tin, bismuth, lead, and antimony, among others.
This is an alloy, not ionic or covalent.
solder - alloy, typically of tin and lead although other metals are sometimes included (e.g. silver) and there are also now lead free solder alloys availablecopper - pureiron - may be mixture or alloy or pure depending on type of iron:elemental iron - pure, but mechanically weakcast iron - alloy, of iron and carbon mechanically strong but brittlewrought iron - mixture, of cast iron and slag inclusions treated with many heating and hammer forging cycles which reduces the brittleness and improves the flexibility
with solder