Metals and Non-Metals
Metalloids

What are Metalloids?
Metalloids are elements that have properties of both metals and non-metals. They are found on the periodic table along the staircase line that separates metals from non-metals. Some examples of metalloids include silicon, arsenic, and germanium.
Physical State

What is the physical state of metals and non-metals?
Metals are typically solid at room temperature, with the exception of mercury which is a liquid. Non-metals, on the other hand, can exist in all three states of matter - solid, liquid, and gas. For example, sulfur is a solid, bromine is a liquid, and oxygen is a gas at room temperature.
Conductivity

How do metals and non-metals differ in terms of conductivity?
Metals are good conductors of heat and electricity due to the presence of free electrons that can move easily. Non-metals, on the other hand, are poor conductors of heat and electricity. This is because they do not have free electrons to carry the charge.
Malleability and Ductility

Can you explain the terms malleability and ductility in relation to metals?
Metals are malleable, which means they can be hammered or rolled into thin sheets without breaking. They are also ductile, meaning they can be drawn into wires. These properties are due to the ability of metal atoms to slide over each other without breaking the metallic bonds.
Chemical Reactivity

How do metals and non-metals differ in terms of chemical reactivity?
Metals tend to lose electrons to form positively charged ions, while non-metals tend to gain electrons to form negatively charged ions. This difference in reactivity is due to the tendency of metals to lose electrons and non-metals to gain electrons to achieve a stable electron configuration.