Groups
How many groups are in the Periodic Table?
1-18
What is a family?
A family is one or more columns that are grouped together.
Which Metals are more reactive? The Transition Metals or the Alkali Earth Metals?
Alkali Earth Metals.
How many periods are in the periodic table of elements?
There are 7 periods.
What are the particles that are in an atom.
An atom has a nucleus, protons, neutrons, and electrons.
Do groups in the Periodic Table go up and down or left to right?
Up and Down
The family of elements that have one valence electrons is the...
Alkali Earth Metals.
Which group is the Alkali Earth metals in?
Group 2!
Are periods organized in vertical rows or horizontal rows?
They are organized in horizontal rows.
What two particles reside in the nucleus of an atom?
Protons and Neutrons.
What are Group one elements called?
A. Alkali Earth Metals
B. Alkali Metals
B. Alkali Metals.
What properties do all members of a family of elements share together?
Chemical Properties.
Which groups are the transition metals in?
How did Mendeleev put elements in rows.
He put them in rows by increasing their atomic mass.
What are the outer most regions of an atom called?
The outer most regions of an atom are called electron shells.
What are A Groups?
A. Horizontal rows that exclude Transition Metals.
B. Horizontal columns that include Transition Metals.
C. Vertical columns that exclude Transition Metals.
D. Vertical columns that include Transition Metals.
C. Vertical columns that exclude Transition Metals.
What are the most reactive families on the periodic table?
Alkali Metals and Halogens.
What percent of the periodic table of elements are metals.
3/4 of the periodic table are elements.
Do periods increase in Atomic mass or in Atomic Number?
They increase in atomic number.
What particles reside on the outer most shells of an atom.
Valence electrons.
What chemical properties do elements in the same group share?
They all have the same number of valence electrons.
Can families only be one column, or multiple columns put together?
They can be both.
What are Metalloids?
Metalloids have both metal and non-metal properties. Only family that is not oriented up ad down.
What do periods on the periodic table tell us about atoms in the periods.
They tell us how many pathways or electron shells an atom has.
The number of protons in an atom determines the....
Atomic Number