History
Who made the periodic table?
Dimitri Mendelev
How does the periodic table organize the elements
By its properties such as its atomic number or mass
What are the 2 different element groups
Group A elements, and Group B elements
The way electrons are arranged in various orbitals around the nuclei
What is the electron configuration of an element?
One half the distance between the nuclei of 2 atoms of the same element when joined.
What is the Atomic radius?
How was the first periodic table organized
By increasing atomic mass
What are the 3 category's elements are put into for their physical properties
Metals, Non-Metals, and Metalloids
Where do groups start from? Where do periods start?
A group starts from top to bottom and periods start from left to right.
What does the configuration of an element determine on the periodic table?
It determines the specific placement of an element
How does atomic size increase?
Atomic size increases from top to bottom in a group and decreases from left to right on a period.
How is the modern periodic table organized?
It is organized by increasing atomic number
What is the difference between a metal and a non-metal?
A metal is a good conductor of heat and electricity while non-metals are poor conductors
What type of elements are in the 4th period(state the representative elements )
The elements include ,Akali and Alkaline earth metals, halogens and noble gases
What group have the p orbital filled
Group 8A has the orbital filled
An atom that has a positive or negative charge.
What is an ion?
What is the difference between the first periodic table and the current one?
The current periodic table uses an elements atomic number while the first one used the atomic mass
Has the properties of metals and non-metals
What is metalloids?
The first group with only 1 valence electron
What is Alkali metals?
Based on its configuration, what group does Arsenic go to
It goes to group 5A
The energy required to remove an electron from an atom.
What is ionization energy?
What was the error in the first periodic table
The use of the atomic mass to organize the elements was inefficient since the the placement of iodine should be with tellurium for its mass but should have been with bromine for its properties.
What groups have a metalloid, metal, and non-metal
Group 2A has metals ,Group 7A has non-metals and metalloids
What are transition metals and inner transitional metals?
Transition metals are the group B elements displayed at the main body of the table. Inner transition metals are below the main body of the the periodic table.
What elements have all of their orbitals filled?
The noble gases have all of their orbitals filled.
What is the electronegativity and its trend on the periodic table?
Electronegativity is the ability of an atom of an element to attract electrons when in a compound. Its trend is that it decreases from top to bottom in a group and increases from left to right in a period.