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Atoms
History
Table Ticklers
Elemental Madness
Family Facts
100
These carry a positive charge and are found in the nucleus.
What are protons?
100
These people first proposed the idea of the atom.
Who are the ancient greeks?
100
The number of protons equals this.
What is the atomic number.
100
The element that makes up 76% of our atmosphere.
What is nitrogen?
100
A group of elements on the periodic table is also known as this.
What is a family?
200
These carry a neutral charge.
What are neutrons
200
This person said that an atom resembled a marble.
Who is Dalton?
200
The atomic number equals both of these.
What are protons and electrons.
200
Element #1 on the periodic table.
What is Hydrogen?
200
What is the name of the elements in Group 2?
What is the alkaline earth metals?
300
These carry a negative charge and are found outside the nucleus.
What are electrons?
300
This person said that an atom resembled a chocolate chip cookie.
Who is Thomson?
300
The number of protons plus neutrons equals this.
What is the atomic mass.
300
This element is found in baseball bats and soft drink cans.
What is aluminum?
300
The elements in these two families are synthetic.
What is the lanthanide series and the actinide series?
400
The number of these determine the element.
What are protons?
400
This person said that atoms were mostly made up of empty space.
Who is Rutherford?
400
As you travel across the rows from left to right the number of these increase.
What is atomic number or number of protons or number of valence electrons (double points).
400
This element is used as the filament in light bulbs.
What is tungsten?
400
Elements in groups 3 through 12 are known as this.
What is the transition metals?
500
The nucleus is held together by this.
What is the strong force?
500
This person is responsible for the first periodic table.
Who is Mendeleev?
500
As you go down the column the number of this increases.
What is electron levels?
500
This element was once found in thermometers.
What is mercury?
500
These elements are salt-formers.
What are the halogens?