Purposeful Design Chapter 2.1

Front

What are alkaline-earth metals used for?

Back

Alkaline-earth metals are used in applications such as fireworks, X-rays, and space vehicles.

Front

What is the term for a substance's ability to be drawn into a wire?

Back

Ductility.

Front

Is copper the best conductor of electricity?

Back

False. Silver is the best conductor of electricity.

Front

Which two elements combine with metals to create most ores in Earth's crust?

Back

Oxygen and silicon.

Front

What characterizes a majority of the actinide series elements?

Back

They are mostly synthetic, radioactive, and difficult to study.

Front

What is the definition of malleability?

Back

Malleability is the ability of a substance to be hammered or pressed into thin sheets.

Front

What is a metallic bond?

Back

A metallic bond is the force of attraction between valence electrons and the metal ions.

Front

What is the significance of silicon in the Earth's crust?

Back

Silicon combines with oxygen to form silicates, which are the most abundant minerals in the Earth's crust.

Front

What is the difference between ductility and malleability?

Back

Ductility refers to the ability to be drawn into wires, while malleability refers to the ability to be shaped into sheets.

Front

What are synthetic elements?

Back

Synthetic elements are man-made elements that do not occur naturally.