Parts of an Atom
Perodic Table
Properties of an Atom
Atomic Theroy
Vocabulary
100
What part of the Atom is positively charged?
What is a Proton
100
Selenium has the atomic number of 34, how many protons does it have?
34
100
Where are elctrons located?
What are Electron Clouds
100
What force plays a big role in radioactivity?
What is weak force
100
What are the regions that electrons are found in called?
What is Electron Cloud
200
Part of the Atom is the neutron in, and what kind of charge does it have?
What is Nucleus and No Charge
200
A column on the periodic table has two (2) names, what are they?
Group and Family
200
What is an Atom made out of?
What are Protons, Neutrons, Electrons, and Empty Space
200
TRUE or FALSE: Dalton's version of the atomic theory lacked no information
What is False
200
What is the The center of the atom that is dense and tiny is called?
What is Nucleus
300
Negatively charged particles that were discovered by Thomson?
What is eletrons
300
Who was the first person to discover the pattern of the elements?
Who is Demitri Mendeleev
300
What is the SI unit used to express the masses of particles in an Atom?
What is the Atomic Mass unit
300
Who was the first Greek Philosopher to think of an atom?
Who is Democritus
300
What is the unit used to tell the particles mass in an atom?
What is Atomic Mass Unit
400
Mostly makes up an Atom
What is empty space
400
What did Henry Mosdey use that helped him arrange the elements of the elements of the Periodic table?
What is the Atoic Number
400
What are the number or Protons in the nucleus in an Atom called?
What is the Atomic Number
400
How did John Dalton develop his atomic theory?
What is observations from experiments
400
The law that states that the repeatingc chemical and physical properties of elements change periodically with the atomic number of the elements
What is the Periodic Law
500
Atoms that have the same number of protons but different number neutrons?
What is Isotopes
500
What are the catagories that the elements are arranged into?
What are Metals, Metalloids, and Nonmetals
500
What is the sum of the protons and neutrons in an Atom?
What is the Mass Number
500
How many types of forces are there
What is 4
500
What is a vertical column of elements in the periodic table
What is a Group
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