This scientist developed a model where protons were in the center and electrons orbited around the nucleus
What is Bohr
100
Mass # is equal to?
What is protons + neutrons
100
Mass # = 25 Atomic # = 12 Neutrons = ?
What is 13
100
How many protons in a nucleus of Oxygen
What is 8
100
Force that attracts the electrons to stay around the nucleus
What is electromagnetic force
200
Please draw Thomson's model of the atom and what experiment did he perform to get this
What is electric charge through gas
200
Atomic number is equal to the
What is the number of protons
200
Electrons = 65 Protons = ?
What is 65
200
How many electrons belong in each energy level?
What is 1st = 2, 2nd = 8, 3rd = 18
200
weakest force
What is gravity
300
Name 2 statements Dalton made about the atom
What is
1. Same elements will have the same types of atoms
2. Different elements will have different types of atoms
3. all matter is composed of atoms
4. Compounds are atoms of 2 elements combined
300
Isotopes are
What is atoms of the same element with the same number of protons and different number of neutrons
300
Atomic # = 34 Neutrons = 20 Mass # = ?
What is 54
300
What is the electron arrangement for nitrogen?
What is 1st = 2, 2nd = 5
300
holds the protons in the nucleus
What is strong force
400
Please draw the wave model of the atom
What is energy levels
400
Electrons have this charge, protons have this charge, and neutrons have this charge
What is negative, proton, no charge
400
Atomic # = 70 Electron # = ?
What is 70
400
What is the electron arrangement for Magnesium
What is 1st = 2, 2nd = 8, 3rd = 2
400
controls radioactive decay in the element
What is the weak froce
500
What was Rutherford's experiment and what did he determine, draw his version of the atom.
What is gold foil experiment and he determined there was a positive center.
500
the difference between atomic mass and mass number
What is atomic mass is the average of all known mass number of an element (isotopes)
500
Electrons # = 41 Mass # = 90 Neutrons # = ?
What is 49
500
How many protons and neutrons in the nucleus in Argon, with a mass number of 40.
What is P = 18, N = 22
500
rank forces from weakest to strongest
What is gravity --> weak --> electromagnetic --> strong