Duplicate of 102.6 Matter

Why do unstable atoms seek other atoms with which they can share electrons?

There are 118 known elements; those above which element are synthetic?

When two hydrogen atoms combine with one oxygen atom, the result is a water molecule, which is a(n):

Basic substances that cannot be broken down into simpler substances are called:

The atomic number of a particular element indicates:

Which of the following items has/have definite weight and volume but no definite shape?

Atoms that are the same form a(n):

Protons have which type of electrical charge?

Pure substances are made of only one type of:

What is the smallest complete unit of an element?

Atoms have three main parts: protons, neutrons and:

The most abundant element in the earth’s crust & second most abundant element in earth’s atmosphere:

Atoms that are different form a(n):

Neutrons have which type of electrical charge?

Electrons have which type of electrical charge?

Water freezing and becoming ice is an example of what type of change?

The chemical symbol for carbon is:

Atoms that are not missing any electrons in their outer shell and are considered electrically neutral are called:

The term used to identify anything that occupies space and has weight is called:

Two or more atoms joined together by a chemical bond is a(n):

Many products estheticians use are the result of chemically uniting two different elements, which is known as:

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

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

The scientific study of matter and the physical and chemical changes of matter is known as:

The simplest atomic structure is: