Metals

This alloy contains 58.3% Au, along with other metals.

14K gold

The year in which the US government started making copper-coated zinc pennies (cheaper).

1982

Why are water pipes often made from copper?

Cu doesn't rust

A list which ranks metals from most active to least active, typically from top to bottom.

activity series

A mixture of 2 or more metal elements, e.g. steel or bronze.

alloy

This alloy is composed of varying amounts of Cu & Zn.

brass

An alloy made up of tin and copper.

bronze

List 3 signs that a chemical reaction has occurred

bubbles (gas), change in color, change in temperature, solid disintegrating.

this element is added to iron to make steel

carbon

Alloy made up of iron and 4% carbon.

cast iron

degradation of materials due to exposure to the environment

corrosion

property of metals which allows them to be drawn into wire

ductility

Where can you find the Transition metals on the periodic table ?

families 3-12

mixture in which you cannot see the individual components; alloys are an example

homogeneous

The ability of a metal to be pounded into thin sheets.

malleability

How are most metals extracted from the ground ?

mining

An alloy of nickel and titanium which was made at the Naval Observation Laboratory.

nitinol

A rock with minerals that can be extracted.

ore

loss of electrons

oxidation

Do metals preferred to reduced or oxidized?

oxidized

Alloy made up of tin + copper, antimony, or bismuth

pewter

the type of change which occurs when brass is formed

physical

The charged obtained by an ion when an atom loses electrons.

positive

A term used to describe an element which is likely to bond with (stick with) another element and make a compound.

reactive

What is it called when ores are reacted with carbon to 'extract' them; it happens when they gain electrons.

reduction

Zinc is above lead on the activity series, therefore it would ________ lead in a compound.

replace

corrosion specific to iron

rust

Alloy made up of different amounts of tin and lead.

solder

Alloy made up of chromium (at least 10.5%), tin, and nickel

stainless steel

Alloy made of iron and 2% carbon.

steel

Alloy made of silver and copper.

sterling silver

A term used to describe an element which is less likely to bond with (stick with) another element.

unreactive