Physical Science 1113 Checkup 1

sodium

6th most common element in the earth's crust

are not

Alkali metals (are or are not) found in a free state.

1

Alkali metals have ____ electron(s) in their outer energy levels.

hydrogen gas, base

Alkali metals react with WATER to produce ____________ and a strong ____.

chemical properties

All elements have similar __________________.

metals, nonmetal, or metalloids

All elements may be classified as ________________________________.

electron donors

All metals are ________________.

donate

An element with 1 or 2 electrons in its valence level will usually __________ electrons.

gain

An element with 6 or 7 electrons in its valence level will usually ___________ electrons.

donate, receive, or share electrons

Any element without a stable octet will ________, _____________, ____________________ to attain a stable octet.

temporary

Elastic deformation is __________.

mercury

Liquid at room temperature

1. high melting temperature 2. ductility 3. malleability 4. electrical conductivity 5. thermal conductivity 6. metallic luster

List six properties of most metals

sodium

Na (what element)

permanent

Plastic deformation is __________.

hydrogen

The only element in Group IA that is not an alkali metal is ________.

chemical reactivity

The rate at which an element reacts with other elements to form compounds is called ____________________.

sodium, potassium, and cesium

What are found in the Dead Sea (salt water)?

cesium and rubidium

What are photosensitive?

cesium

What element(s) has a blue flame test?

lithium and rubidium

What element(s) has a red flame test?

Potassium

What element(s) has a violet flame test?

sodium

What element(s) has a yellow flame test?

francium

What has only been found in trace amounts?

lithium

What is used in construction of aircraft fuselages?

sodium

What is used in water softeners?

tungsten

What metal has the highest melting temperature of any metal?

Sodium and potassium

____________________ are required by the human body.

Sodium and potassium

______________________ are used in fertilizers.

metallic luster

ability of metals to reflect light

ductility

ability to be drawn into a wire

stable octet

an arrangement of 2s electrons and 6p electrons in a valance level

francium

heaviest of all alkali metals

Potassium

k (what element)

lithium

lightest metal

cesium

most photosensitive

rubidium

photosensitive and radioactive

potassium

second lightest metal

Sodium

the most common compound is NaCl