Metals and Non-Metals

Answer

Metals are electropositive elements that usually lose 1, 2, or 3 electrons to form cations. They are generally malleable, ductile, lustrous, sonorous, dense, and good conductors of heat and electricit…

Answer

Metals have free electrons that can move through the metal and carry electric charge. This is why metals are used for electrical wires and many electrical parts.

Answer

Non-metals generally do not have freely moving electrons. Because charge cannot move easily through them, they are usually poor conductors of electricity. Graphite is an exception because it conducts …

Answer

Mercury is the only metal that exists in liquid state at room temperature. It is a low-reactivity metal found near the bottom of the activity series.

Answer

Bromine is the only non-metal that exists in liquid state at room temperature.

Answer

Sodium is soft like wax and can be cut with a knife. Gold is one of the most malleable and ductile metals. Pure gold is 24 carat, but 22 carat gold is used for jewellery because pure gold is too soft.

Answer

Cooking utensils are made of metals such as iron, aluminium, zinc, and copper because metals are strong and conduct heat well. This helps in cooking food efficiently.

Answer

Plastics and glass are non-metals and are useful for storage containers because they do not behave like reactive metals. They are suitable for holding many materials safely.