Test #10

Anything that takes up space and has mass:

Element that is the basic building block of all the compounds:

Iodine, when heated, does not melt but instead sublimes, or turns to gas.

Most abundant element on earth:

Very hard metal which is an important ingredient in stainless steel:

The proton as a negative charge.

The amount of matter that makes up an object:

The metric unit that is used to measure an object's mass:

The weight of an object changes from place to place.

The tiny particles of which all matter is composed:

The three main groups of elements are metals, nonmetals, and semimetals.

The measure of the pull of gravity on an object:

Two or more atoms firmly bound together form a neutron.

Halogen that is useful as a bleach and a germ-killing agent:

The densest of the everyday metals is ____.

Halogen that is added to table salt to prevent a deficiency disease:

A mixture is a substance composed of one or more types of atoms bonded together.

Most metals are ____.

The tiny paricles that swarm at tremendous speeds around the core of an atom:

Semimetal that is used to make computer chips:

Simplest kind of atom with one proton and one electron:

Halogen that is added to toothpaste and drinking water:

Highly reactive elements that tend to form compounds with alkali and alkaline earth metals:

Process in which atoms of elements or compounds are rearranged to form new substances:

An element is a substance composed of one or more types of atoms bonded together.

Organized arrangement of all known elements:

Two electrons attract each other.

The tiny, extremely dense core at the center of an atom:

Only metal that is liquid at room temperature:

Elements which do not combine with anything else except under unusual circumstances:

Formed by electrons that are in orbit the same distance from the nucleus:

The number of protons an atom has:

A neutral atom has an equal number of protons and electrons.

Hardest of all known substances:

The rapid reaction of any substance with oxygen:

If two objects have the same volume but different densities, the object made of the denser substnace weighs less.

A compound made of molecules:

A compound made of charged atoms:

Lacking an electrical charge:

Study of what substances are made of and how one substane can be changed into another:

The amount of matter in one unit of volume:

Colorless, odorless gas that makes up 78% of the earth's atmosphere:

The 2 particles that make up the nucleus of an atom:

Formed by electrons zooming around the nucleus of an atom: