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Subatomic Particles
Special People
Symbols of elements
Energy levels
Random
100
What are the three subatomic particles?
What are protons, neutrons, and electrons.
100
Who organized the modern periodic table?
Who is Dimitri Mendeleev
100
He
What is Helium
100
Levl 1 holds how many electrons?
What is 2 electrons
100
What two forces act on the nucleus of an atom?
Electromagnetic and Strong Nuclear forces
200
What is the charge of a electron?
What is negative
200
What is James Chadwick responsible for finding?
What is the neutron
200
Beryllium
What is Be
200
18 electrons can be found on which energy level?
What is level 3
200
What are the building blocks of matter?
atoms
300
What is the charge of a neutron?
What is neutral
300
What is the name John Dalton's atomic theory?
What is the Six Points
300
Curium
What is Cm
300
How many levels does silicon require?
What is 3
300
What is the valence shell?
The outermost region of the electron cloud
400
Where is the electron located?
What is the electron cloud
400
What did Ernest Rutherford do to hypothesize that the nucleus is made up of mostly empty space?
He used alpha particles to bombard gold foil. Most of particles went through and some bounced off.
400
Pb
What is lead
400
How many Electrons are found on the 4 level.
What is 32
400
What is the proton,electron, and neutron number of Sulfur
proton=16 electron=16 neutron=16
500
What are the masses of all three subatomic particles?
Neutron-1/2000 amu Proton-1 amu Neutron-1 amu
500
What theory did Niels Bohr create?
Electrons move at the nucleus in a fixed orbit and have a fixed amount of energy.
500
Po
What is Polonium
500
What happens when electrons get excited.
They jump to higher energy levels and release energy as photons.
500
Why is the mass number of Boron 11 instead of 10.81?
10.81 is the average of all th isotopes for Boron. In oreder to get the most common isotope you round the mass number given on the periodic table.