(3xPts)Who is the greatest chemistry teacher in the world.
Mr. Harris :)
What are the 3 types of compounds talked about so far.
ionic covalent and acids
What is the number below the element's symbol and what does it represent?
the atomic mass
How many valence electrons does nitrogen have?
5
What is came up with the first theory of the atom?
John Dalton
What is one of the metalloids in the periodic table?
Boron, Silicon, Germanium, Arsenic, Antimony, Tellurium, Poladium
What is Niels Bohr's model of the atom called?
The planetary model
(2xPts) What group has transition metals that do not really change charge?
Group 13.
WHo developed the modern quantum model of the atom?
Schrodinger
What is a cation?
A positively charged ion that gives electrons away.
What is the name for P4I9
Tetraphospohorous Nonaidodide