What properties of an element are affected by electron distribution?=
Define malleability.

Define ductility.

State one reason gold is used in jewelry.

Why is mercury no longer used in many devices?

What are the properties of nonmetals?

List the states of matter in which nonmetals can exist and give one example of each state.

What are the physical properties and uses of sulfur?

What are the physical properties and uses of bromine?

What are the physical properties and uses of helium?


Define “metalloid.”

Why would it be difficult to decide whether or not an element was a metalloid based on its properties?

Why is silicon used extensively in electronics?

What are borosilicates used for?

Why is the use of arsenic as an insecticide decreasing?

What is a main application of antimony?