Atomic Theory
Atomic Mass
Radioactivity
Atomic Structure
Ions
100
Who founded the modern atomic theory?
John Dalton
100
Krypton-83 has a mass of what? (Include proper units!)
83 amu
100
This type of decay has an emission of a particle that we often write as a Helium atom.
Alpha decay
100
Neutrons have what type of charge?
Neutral/no charge
100
What are ions?
Atoms that contain an electrical charge.
200
What did the plum pudding model demonstrate/state?
The atom is made of a positively charged mass with electrons floating around inside.
200
What do we call two atoms that have the same number of protons, and a different number of neutrons?
Isotopes
200
This type of decay consists of the emission of a single electron (e-).
Beta decay
200
Electrons have what type of charge?
Negative
200
What are positively charged atoms called?
Cations
300
Rutherford concluded that atoms contain a small center (called the nucleus) and it had a...
Positive charge
300
An atom with 16 protons, 17 electrons, and 20 neutrons would have a mass of what? (Include proper units!)
36 amu
300
This type of emission is pure radiation.
Gamma decay
300
How many protons, neutrons, and electrons are in the following isotope for bromine? (Neutral)
Protons: 35
Neutrons: 45
Electrons: 35
300
What are negatively charged ions called?
Anions
400
Which experiment was the electron discovered?
Cathode Ray Tube Experiment
400
Why do some masses on the periodic table contain decimal places?
Mass on the periodic table is the average mass of all naturally occurring isotopes.
400
What type of decay has the strongest penetrating power and requires thick lead to block?
Gamma decay
400
How many electrons does Manganese (Mn) with a positive 3 charge have?
22 electrons
400
If carbon were to have a 4- charge, how many electrons would it have?
10 electrons
500
What is the name of the most current atomic model?
The Quantum Model
500
What is the average atomic mass for the following unknown element? (Include proper units!)
J-154: 56.31%, 153.99 amu
J-155: 21.80%, 154.95 amu
J-156: 21.89%, 155.93 amu
154.6 amu
500
Write the gamma emission for Iodine.
500
DOUBLE JEOPARDY!
How is the periodic table arranged?
By number of protons/by the atomic number.
500
Magnesium that lost two electrons would have what type of charge?
2+