Metals

Question 1

Metallic character shows the ability of an atom to _____ _______.

Answer 1

lose electrons.

Question 2

When an atom loses one or more electrons, it becomes an _____.

Answer 2

Ion.

Question 3

An ion with a positive charge is called __ ____.

Answer 3

a cation.

Question 4

Metals tend to lose electrons and become ions with a _______ charge.

Answer 4

positive

Question 5

Atoms with 3 or less valence shell electrons are generally known as ____ because when they react, they lose electrons.

Answer 5

metals

Question 6

When metal atoms bond to other metal atoms, their valence electrons freely move around. This behavior is often referred to as

Answer 6

cations in a sea of mobile electrons.

Question 7

The dissolving of an ore’s ions by water or acid is called

Answer 7

leaching

Question 8

the process of adding electrons to a metal ion to form a metal atom is called

Answer 8

reduction

Question 9

In an ore, the metal is in the form of a

Answer 9

cation (having lost its valence electrons).

Question 10

In pure metals, the metal is in the form of an

Answer 10

atom (with its valence electrons).

Question 11

Electrical conductivity is…

Answer 11

the measure of a substances ability to conduct electricity.

Question 12

Do metals have a high or low electrical conductivity?

Answer 12

High.

Question 13

Thermal conductivity is

Answer 13

the measure of a substances ability to conduct heat.

Question 14

Do metals have a high or low thermal conductivity?

Answer 14

High.

Question 15

The level of “shininess” or ability to reflect light is known as

Answer 15

Luster.

Question 16

Which do metals have, a shiny or dull luster?

Answer 16

Shiny.

Question 17

The ability of a substance to withstand tensile (or pulling) stress without breaking is called

Answer 17

Ductility.

Question 18

The ability of a substance to be hammered into a shape or rolled is called

Answer 18

Malleability.

Question 19

Are metals malleable or non-malleable?

Answer 19

Malleable.

Question 20

Are metals ductile or non-ductile?

Answer 20

Ductile.

Question 21

What is an ingot?

Answer 21

A bar of metal that has been molded (cast) and prepared for further processing.

Question 22

The process of heating a metal and cooling it slowly, thus removing dislocations, so that it becomes more malleable or workable is called

Answer 22

Annealing.

Question 23

The rapid cooling of metal so that dislocations remain, thereby making a metal more brittle, and harder, is called

Answer 23

Quenching.

Question 24

The series of heatings and coolings applied to a metal to reduce excess hardness is called

Answer 24

Tempering.

Question 25

An ore is

Answer 25

a rock that contains a particular metal (or other substance) that is desired for extraction. This substance is generally in the form of an ion.

Question 26

Smelting is a process of treating ore with chemicals and heat so that

Answer 26

the metal in the ore can be extracted.

Question 27

A mixture of a metal with another substance (often another metal) with different properties is called

Answer 27

an alloy.

Question 28

Galvanizing is the process used to coat a metal with

Answer 28

zinc, so that it is protected from oxidizing (rusting) in the environment.

Question 29

Alchemists sought to change base metals like lead into noble metals like gold in a process called

Answer 29

transmutation.

Question 30

The branch of chemistry which studies the physical and chemical properties of metals is called

Answer 30

Metallurgy.