Unit Three Quiz One Flashcards
What are the three laws of the modern atomic theory?
-Law of definite proportions
-Law of conservation mass
-Law of multiple proportions
What law states…
Mass cannot be created in a chemical reaction
Law of conservation mass
What law states…
Different compounds can be created by the same elements
Law of multiple proportions
What law states…
The compound carbon dioxide is 72.71%
Law of definite proportions
What law states…
When silver reacts with copper (II) chloride, 57g silver before the reaction will result in 57g after the reaction.
Law of conservation of mass
What law states…
Water contains a ratio of hydrogen to oxygen at 2:1, whereas hydrogen peroxide contains a ratio of hydrogen to oxygen at 1:1
Law of multiple proportions
What law states…
Every sample of silver nitrate will contain one silver ion bonded to one nitrate ion.
Law of definite proportions
Which of Dalton’s Laws are no longer true today and why?
- Atoms cannot be subdivided, created or destroyed
- Atoms of an element have identical size, mass, and other properties” atoms of different elements different in size, mass, and other properties
Identify the person who discovered the following….
Who was the first to discover the neutron?
Rutherford
Chadwick
Dalton
Thomson
Democritus
Bohr
Schrodinger
Chadwick
Identify the person who discovered the following….
Who was the first to discover the election?
Rutherford
Chadwick
Dalton
Thomson
Democritus
Bohr
Schrodinger
Thomson
Identify the person who discovered the following….
Who was the first to propose that electrons are in energy levels?
Rutherford
Chadwick
Dalton
Thomson
Democritus
Bohr
Schrodinger
Bohr
Identify the person who discovered the following….
Who was the first to propose that electrons are in a cloud surrounding the nucleus?
Rutherford
Chadwick
Dalton
Thomson
Democritus
Bohr
Schrodinger
Schrodinger
Identify the person who discovered the following….
Who was the first to discover the plum pudding model?
Rutherford
Chadwick
Dalton
Thomson
Democritus
Bohr
Schrodinger
Thomson
Identify the person who discovered the following….
Who was the first to discover the gold foil experiment
Rutherford
Chadwick
Dalton
Thomson
Democritus
Bohr
Schrodinger
Rutherford
Identify the person who discovered the following….
Who discovered the billiard ball model?
Rutherford
Chadwick
Dalton
Thomson
Democritus
Bohr
Schrodinger
Dalton
Identify the person who discovered the following….
Who was the first to discover the proton/ nucleus?
Rutherford
Chadwick
Dalton
Thomson
Democritus
Bohr
Schrodinger
Rutherford
What did the billiard ball model state?
Atoms were the smallest part of matter and cannot be divided
What did Rutherford’s model state?
Positive nucleus
According to Coulmb’s Law, what is true regarding force when two charges are closer?
The closer the charge the greater the force
Aside from mass, what do neutrons contribute to the atom?
Stability/Keep protons from repelling
What is the common charge for…
electrons ________
protons ________
neutrons ________
electrons = (-1)
protons= (+1)
neutrons= (0)
What is the common mass for the following…
electrons ________
protons ________
neutrons ________
electrons = (0)
protons= (1)
neutrons= (1)
