The Periodic Table
the horizontal rows on the periodic table
What is a period?
the 3 subatomic particles
What are the neutron, electron, and proton?
Who came up with the theory of "atomos?"
Who is Democritus?
Most of the nonmetals are located on this side of the Periodic Table
What is the right side?
the 4 states of matter
The vertical columns on the periodic table
What is a group?
Which subatomic particle has a negative charge?
What is the electron?
Thought atoms were solid spheres
Most of the elements on the Periodic Table are
What are metals?
the 2 elements found in table salt
What are Sodium and Chlorine? (NaCl)
another word for group
What is a family?
Which 2 subatomic particles are found in the nucleus?
What are the proton and the electron?
Discovered the nucleus while performing his gold foil experiment
Who is Ernest Rutherford?
These are good semiconductors
What are metalloids?
The chemical symbol for Tin
What is Sn?
the number of elements on the periodic table
What is 118?
The number of protons in an Oxygen atom
What is 8?
Discovered the electron; chocolate chip cookie theory
Who is JJ Thompson?
A metal that is liquid at room temperature
What is Mercury? Or what is Gallium?
The most deadly element
What is Polonium?
the inventor of the Periodic Table
Who is Dmitri Mendeleev?
the 14 in the isotope Carbon-14 stands for what?
What is the mass number? Or what is the number of protons and neutrons?
This scientist's model is referred to as the "planetary model"
Who is Ernest Rutherford?
2 physical properties of nonmetals
What are insulators, dull, brittle, usually gases
the heaviest elements chemical symbol
What is Ur? (Uranium)