Scientists
Periodic Groups
Periodic Trends
Who is Higher?
Who is Lower?
100
This scientist created the first Periodic Table of Elements
Who is Dmitri Mendeleev
100
This group of elements is characterized by being unreactive.
What are the Noble Gases
100
The ability to attract electrons is known as __________.
What is electronegativity
100
In terms of Valence electrons:


Na or S

What is Sulfur
100
In terms of Valence Electrons:


P or K

What is K
200
What scientist is responsible for giving us a way to accurately measure Atomic Mass?
Who is Stanislao Cannizzaro
200
This group of elements is highly explosive when exposed to water.
What are the Alkali Metals
200
As you travel from left to right across the Periodic Table, this trend DECREASES.
What is Atomic Radii
200
In terms of Electronegativity:


N or K

What is Nitrogen
200
In terms of Ionization E:


Na or Rb

What is Rb
300
How did Mendeleev order the first Periodic Table?
What is by Atomic Mass
300
This group of elements have characteristics of metals and nonmetals.
What are the Metalloids
300
The want to add electrons is known as _________.
What is Electron Affinity
300
In terms of Ionization Energy:


Al or Xe

What is Xe
300
In terms of Electronegativity:


F or N

What is N
400
Where did Stanislao Cannizzaro present his method for calculating Atomic Mass?
What is the International Congress of Chemists
400
This group of elements are the most reactive group of nonmentals.
What are the Halogens
400
When an atom GAINS and electron it forms a _____________.
What is an Anion
400
In terms of Atomic Radii:


Cs or Ba

What is Ba
400
In terms of Atomic Radii:


I or Br

What is Br
500
Who correctly organized the Periodic Table of elements?
Who is Henry Moseley
500
This group of elements are found as free elements in nature and are good conductors.
What are the Transition Metals
500
The electrons responsible for creating chemical compounds are known as ________.
What are Valence Electrons.
500
In terms of Electron Affinity:


Mg or Br

What is Br
500
In terms of Electron Affinity:


S or O

What is S
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