Chapter 11 - Lesson 3: Nonmetals and Metalloids

Flashcards about Nonmetals and Metalloids

What are the general properties of metals?

Luster (reflect light), Ductility (Can be pulled as wires), Malleability (Can be hammered into sheets)

What are the general properties of Non-metals?

Brittle (easy to break), Exist as gas, liquid and solid, Poor conductors (good insulator), Dull (not shiny), Located in the right side in the periodic table.

What are the general properties of Metalloids?

Have the properties of both metals and non-metals, Act as metal at high temperature, and as nonmetals at low temperature, Semiconductors, Located between metals and nonmetals in the periodic table

What are Non-Metals?

Elements that have no metallic properties and are insulators.

What is a gaseous state?

Many nonmetals are in this state at room temperature.

What is dull?

Solid nonmetals have this type of surface.

What is a metalloid?

An element that has physical and chemical properties of both metals and nonmetals.

How do Metalloids act like Metals?

They conduct electricity at high temperatures.

How do Metalloids act like Nonmetals?

They stop electricity from flowing at low temperatures.

What are the key words associated with sub-families of non-metals?

Halogens, Nobel gases, and Hydrogen

How does hydrogen show properties of metals?

In its liquid form, it conducts electricity like a metal and is very reactive like an alkali metal.

How does hydrogen show properties of nonmetals?

It is a gas at room temperature and has nonmetal properties.

What is hydrogen fuel?

Light and extremely powerful rocket fuel