Periodic Table History
The Elements in the modern periodic table are arranged by
Atomic Number
This element has the biggest Atomic Radius on the periodic table
Francium
How does electronegativity trend across a periodic table (Increase or Decrease)
Increase
Which elements have similar properties to Fluorine (F)
(Chlorine (Cl) , Bromine (Br)
(Aluminum (Al), Gallium (Ga)
Chlorine (Cl), Bromine (Br)
This guy arranged the first version of the periodic table
Mendeleev
How does Atomic Radius trend across the periodic table from left to right (Increase or Decrease?)
Decrease
This element is the most electronegative element on the periodic table
Fluorine
Which of the following have similar physical and chemical properties
Sulfur (S), Sodium (Na)
Aluminum (Al), Sulfur (S)
Nitrogen (N), Phosphorus (P)
Nitrogen (N), Phosphorus (P)
The elements in Mendeleev's Periodic Table were arranged by
Atomic Mass
List the following elements in order of increasing Atomic Radius / Size (Boron (B), Oxygen (O), Calcium (Ca).
Oxygen (O), Boron (B), Calcium (Ca)
Rank the following elements in order of increasing Electronegativity (Sulfur (S), Sodium (Na), Chlorine (Cl)
Sodium (Na), Sulfur (S), Chlorine (Cl)
Which of the following elements have similar physical and chemical properties
(Boron (B) , Oxygen (O)
(Boron (B), Aluminum (Al)
(Fluorine (Fl), Francium (Fr)
Boron (B), Aluminum (Al)
This is the reason the creator of the original periodic table left spaces open
He predicted that undiscovered elements would eventually fill those gaps
List the following Elements in order of increasing Atomic Radius / Size (Potassium (K), Lithium (LI), Nitrogen (N).
Nitrogen (N), Lithium (Li), Potassium (K).
Rank the following elements in order of increasing Electronegativity (Lithium (LI), Rubidium (Rb), Boron (B)
Rubidium (Rb), Lithium (Li), Boron (B)
The elements in group # 18 are called
Noble Gases
What nationality was Mendeleev
Russian
Why does Atomic Radius decrease from left to right across the periodic table
As the number of protons increase the Atomic Radius Decreases
How does Atomic Radius affect Electronegativity?
As atomic radius increases, electronegativity decreases
The elements in group #1 are called
Alkali Metals