Chemistry Unit 1& 2

Which is NOT an example of a Pure Substance?

Each element is represented by an?

The following image is an example of what type of change?

The "stuff" of which the universe is made of is called?

A medal chain rusting is an example of what type of change?

A change that does not affect the composition of a substance is called?

What is found inside of the nucleus?

The third ring of an atom can carry a max of ________ electrons?

What can be found in the center of the Atom?

The nucleus of an atom is surrounded by______ that have _______ on them.

What type of electrical charge does a proton have?

The center letters on an element box are called?

Substances containing only one type of atom are called?

What type of electrical charge does an electron have?

Scientist use: Objective, Data Collection, Hypothesis, and experimentation in?

A candle burning is an example of what type of change?

Something that has a variable composition is called a?

2 or more atoms bonded together is a?

The electrons on the outermost ring are called?

What type of charge does a neutron have?

To figure out the # of neutrons..............

The bottom # on the element box is called the?

Which is not an example of a mixture?

The atomic # represents the # of ______ & _____?

A change in which a substance becomes a different substance is called?

A substance that always has the same composition is called?

Substances made by bonding atoms together in specific ways are called?

The top # on an element box is called?

The second ring of an atom can carry a max of _______ electrons?

A unit of which elements are made is called a?

The periodic tables contains?

The first ring of an atom can carry a max of _______ electrons?