Question

Advantages and disadvantages of classifying the elements into metals and non metals

Answer 1

Metals appear on the left hand side of the Periodic Table, They have high melting and boiling points and are generally solid at room temperature (mercury is an exception which is a liquid at room temperature. They are good conductors of heat and electricity. They are malleable (can be flattened into thin sheets) and ductile (can be drawn into wires). They have bright luster.

Answer 2

Answer:

➊Advantages of Using Plastics

➩Plastic is non reactive

➩Plastic is light,strong and durable

➩Plastics are poor conductors of electricity

➩Plastics are poor conductors of heat

➪Non Sticky

➋Disadvantages of Using Plastics

➪Plastics are Non Biodegradable

➩Burning of Plastics cause air pollution

➪Plastic Bags are Harmful for Animals