Protons and Neutrons
Atomic theory
People 1
People 2
Electrons and Ions
100
Protons and neutrons _______ ____ eachother
What is balance out
100
Are atoms are smaller or bigger than a penny
What is smaller
100
explained that electrons in atoms went around the nucleus
who is lewis
100
Discovered that all molecules linked together.
Who is Avogadro?
100
the atom becomes charged because of the ________ and electrons.
What is protons
200
Neutrons are particles with ______ charge
What is no
200
Atoms are measured in this unit
What is the AMU (atomic mass unit)
200
discovered electro chemistry which led to the rise of illuminum
who is Davy
200
Discovered gas and did a very famous experiment incolcing mercury.
Who is Priestely?
200
When an atom becomes a ________ particle, it is an ion
What is charged
300
Protons are ________ charged particles
What is positively
300
Atoms of the same element are _____ and atoms of different elements are ______
what is alike; different?
300
showed chemical bonds to eachother, atoms made a ring, led to new medicine and drugs
Who is KeKule
300
Created plastic
Who is Baekeland?
300
the electrical state of an aton is ______ because of how electrons and protons balance out each other.
What is neutral
400
the mass of a neutron is _.7 x 10 -24g.
What is 1
400
all substances are made of these
what is atoms
400
was a teacher who construcred cards and created the periodic tables
Who is Mendeleev
400
Someone who created a whole new class of larger molecules.
Who is Smalley
400
the mass of an electron is __.11 x 10 -31kilograms.
What is 9
500
the mass of a proton is _.7 x 10 -24g.
what is 1
500
Toms were not visible until the invention of the scanning tunneling microscope in this year.
what is 1981
500
created a list of elements or periodic tables, set the standards for the experiment
Who is Lavoisier
500
The person who discovered radioactive elements.
Who is Marie Curie?
500
electrons are _______ charged particles
What is negatively
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