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Ion U
Organized Elements
Families
Element Classification
Potpoutrri
100
Elements that loose electrons and become +
What are cations
100
He was not the first to use a periodic table, but he is credited as being the first to publish one
What is Demitri Mendeleev
100
These elements are solids at room temperature, good conductors of heat and electricity and maleable
What are metals
100
This is a metals ability to be stretched into wire.
What is ductile
100
These elements from group 17 form compounds by gaining an electron to form a negative ion.
What are halogens
200
Elements that are located on the far right side of the periodic table have this charge and are called these (2 answers)
What is negative anions
200
He arranged the current periodic table according to increasing atomic number
Who is Henry Moseley
200
These metals have varying numbers of valence electrons and are located in the middle of the periodic table.
What are transition metals
200
This is the only liquid metal at room temperature
What is Mercury
200
This is the process of gaining or losing electrons.
What is ionization
300
These are highly reactive cations found in group 1
What are alkali metals
300
As you move from left to right across the periodic table, atoms become ______
What is less metallic
300
These elements conduct heat and electricity under certain conditions
What are semiconductors
300
This type of element is the most common
What are metals
300
These elements have similar properties do to the amount of valence electrons they have
What is a family.
400
They are the most reactive anions because they only need 1 electron to fill their outer energy level
What are the halogens
400
This states that properties of atoms appear at regular intervals
What is periodic law
400
Elements in this family have a +2 charge because of the 2 valence electrons they loose.
What are the Alkaline-Earth Metals
400
Solids of this type of element are brittle and dull
What are nonmetals
400
Magnesium is located to the right of sodium because it has more of these
What are protons
500
The only group or family to NOT become ionic
What are the Noble Gases
500
Mendeleev was able to predict new elements by doing this to his periodic table
What is leave gaps
500
These elements are made in a lab
What are synthetic elements
500
This element is the only liquid nonmetal at room temperature.
What is Bromine
500
As you move from top to bottom in a column of the periodic table, elements have a higher
What is atomic number