102.6 Matter

Electrons have which type of electrical charge?

The smallest complete unit of an element

Two or more atoms joined together by a chemical bond

This has weight and takes up space.

Skin comprises two solids, which are carbon and sulfur and three gases, which are hydrogen, nitrogen and:

The most common element in the universe

The simplest atomic structure is:

Atoms that are the same form a(n):

A simple unit of carbohydrates

An atom consists of Protons, Neutrons and

When two molecules of the element oxygen have combined, it is called a(n):

If an atom is not missing any electons from its outer shell, it is

A process where a substance gains an electron, and oxygen is released.

Skin, hair, muscles, nerves and blood are all made of

What is true of the elements listed above the 92nd element on the periodic table

The atomic number of a particular element is determined by :

The study of all matter that is not alive, has never been alive and does not contain carbon.

The most abundant in the earth's crust and the second most abundant element in the earth's atmosphere

Amino acids join together in chains to become

Pure substances are made of only one type of:

Carbon, oxygen, hydrogen and nitrogen form the basis of:

If the atoms that combine are different, they form a

The atomic number given for oxygen is 8. This means

How many elements are on the Periodic Table?

The study of chemical reactions such as growth, reproduction and respiration that occur within a living organism

 The 3 major biochemical compound groups in the body

What fills the intercellular spaces around our skin cells?

Amino acids that create proteins are linked together end to end by _____________.