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Atomic Theory Scientists
Subatomic Particles
Calculations
P N E of Elements
Odds and Ends
100
This scientist discovered the electron.
Who is JJ Thomson?
100
This particle has a positive charge.
What is a proton?
100

This is a tool all chemists use to determine information about the elements

What is the periodic table of elements?

100
This element has 20 protons.
What is Calcium?
100

The modern atomic model

What is electron cloud model?

200
This scientist proposed that electrons orbit the nucleus in fixed paths at fixed energy levels just like planets orbit the sun.
What is Niels Bohr?
200
This particle's only contribution to the atom is to give the atom more mass.
What is a neutron?
200
The atomic number is the same as the number of this particle.
What is a proton?
200

This is the amount of electrons in Carbon

What is 6 electrons?

200
Atoms with unequal amounts of protons and electrons

What is an ion?

300
This scientist described the atom as the smallest, most indivisible piece of matter and proposed 4 postulates/laws regarding atomic theory.
Who is John Dalton?
300

This particle orbits around the nucleus. 

What is an electron?

300

This number is used to calculate the number of neutrons (_______ - protons = neutrons)

What is atomic mass?

300

This is the amount of neutrons in Boron

What is 6 neutrons? 

300

The unequal amount of protons and neutrons

What is unstable? (BONUS POINTS: isotope)

400

This Greek philosopher rejected the idea of atoms, which lead to the death of chemistry for 2000 years

Who is Aristotle?

400

These particles make up the majority of the mass in an atom. 

What are protons and neutrons?

400
This is the formula for mass number.
What is # of protons + # neutrons?
400

The amount of neutrons in this element, Gold (Au) 

What is 118 neutrons?

400

This is how many electrons can go into the first orbital of a Bohr Model

What is 2?

500
An ancient Greek philosopher who theorized that there must be some particle that is the smallest form of matter and called it "atomos".
Who is Democritus?
500
This particle has virtually no mass.
What is an electron?
500

The reason why protons = electrons

What is a neutral atom?

500

The mass number, protons, electrons, and neutrons in Cobalt (Co)

What is 59, 27, 27, and 32?

500

This is the Bohr Model of Oxygen (DRAW!)

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