Vocab
What does the Greek atomos mean?
Indivisible or Uncuttable
Scientist for whom the 99th Element is named after.
Albert Einstein
What Element is S?
Sulfur--Nonmetal
How many Chlorine atoms are in CaCl2?
Two (2)
How much coal is 1 Kg of Uranium equivalent to?
4500 tons
An atom that has gained or lost electrons is called:
ion
Who was known as the laughing philosopher?
Democritus
Symbol for Sodium
Na--Metal
What kind of bond occurs between metals and nonmetals?
Common Name for NaOH
Lye
Bonds that involve sharing of electrons are known as:
Covalent
English Scientist who described Electrons using a Plum Pudding Atomic Model.
JJ Thompson
Symbol for Potassium
K--Metal
How many electrons in the outer layer of Sulfur?
Two
Common name for H2SO4
Sulfuric Acid
A reaction where two elements join to make a compound.
Synthesis
Developed the planetary Model with electrons orbiting the nucleus in different energy levels.
Niels Bohr
Symbol for Nickel
Ni-Metal
Name this compound: KN03
Potassium Nitrate
How many electrons in the out layer of a Magnesium Atom?
Two
A reaction that requires heat.
Endothermic
Russian Scientist that developed the first periodic table.
Dmitri Mendeleev
What element is Hg?
Mercury--Metal
What ion do all Acids have in common?
H+
Common name for this Hydrocarbon CH4
Methane