The definition for element
A substance made up of entirely one kind of atom
What is matter
Anything that has mass and takes up space
What is the definition for Valance electrons
They are the ones involved in all chemical reactions
What are transition metals
They can exist freely in nature but a little more dense
What are the Halogens made up of
All non metals
What does pure substance mean
A substance that cannot be broken down by normal chemical means
What are protons
They are the positive charge of an atom
What is synthetic
Synthetic are the elements that are man made
What is the boron family
3 val ele. that are made up of mostly metals and vary reactive
Where are the Noble gases located
Group 18
What does isotopes mean
Atoms of the same elements that have the diffrent # of neutrons
What are neutrons
The charge that does not have either a positive or negative charge
What are semi conductors
The conductors that only conduct threw high electricity
What is the carbon family
Reactive and have 4 val. ele. with 1 non,2meatloids and the rest are metals
What are Lanthanides
Rare earth metals
What does Ape stand for
Atomic#
Protons r all =
Electrons
What are electrons
The negative charge of an atom
What are Alkali metals
They are the most reactive metals and very soft that cannot be found freely in nature
What is the Nitrogen family
Reactive and found in between Carbon and oxygen
What are actinides
They are radio active and mostly man made
What does man stand for
Mass
-atomic #
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neutrons
What is an atom
An atom is the smallest particle that an element can be "broken" into and still maintain the properties or a characteristics of that element.
What are Alkaline Metals
They are not found freely in nature and are the second most reactive family
What is the Oxygen family made up of
6 val ele. 3 non 2 metaloids and 1 metal
Explain Bohr diagrams and the lewis structure
Bohr diagrams shows everything
Lewis is a structure that is a short cut that is just uses symbols and Shows just Valance Electrons