Scientists
Rutherford made this discovery during the gold foil experiment
What is atoms have a tiny positively charged nucleus
(discovered the proton)
A particle that contains 38 electrons, 49 neutrons, and 36 protons?
What is an ion with a -2 charge
Comparing red to blue, a wave of red light would have a longer wavelength and this type of energy
What is lower energy
If Aluminum-27 decays directly to Silicon-27, this type of decay has taken place
What is Beta decay
1s22s22p63s23p64s23d104p3 represents this element
What is ARSENIC
What model is JJ Thompson associated with
What is the Chocolate Chip Cookie model
(the Plum Pudding Model/Blueberry Muffin model)
Isotopes of the same element have the same number of protons but a different number of these
What are neutrons
A wave with high energy will have this type of wavelength
What is short wavelength
If Oxygen-16 undergoes alpha decay, a helium particle is emitted along with this
What is 126C
1s22s22p63s23p2 contains this number of valence electrons
What is 4
The Planetary model consists of protons being located in the nucleus and electrons located outside the nucleus in these
What are energy levels
A neutral atom always has the same number of these two subatomic particles
What are protons and electrons
When graphed, frequency and wavelength have this type of relationship
What is negative
The products if Potassium-39 went through beta decay
What are a beta particle & 3920Ca
Draw the orbital filling diagram for Hydrogen in an excited state
see paper
Feynman's work is responsible for giving us the most accurate atomic model
What is the Electron Cloud Model
Classification of Calcium-42
what is an isotope
When an element absorbs energy and moves to a higher energy level it is said to be in this type of state
What is excited
These are the quantum numbers for the last electron in Aluminum
What are: 3,1,-1,+1/2
What is 8
By the late 1920s atoms were known to have protons and electrons. By 1932, Chadwick's work revealed another subatomic particle.
What is the neutron
Carbon-12 is the most abundant isotope of Carbon. It has 6 proton, 6 electrons, & 6 neutrons. This would be the subatomic composition of Carbon-14
What is: 6 protons, 6 electrons, 8 neutrons
Each element emits a unique colored line spectrum when it falls from an excited state to a __________ that corresponds to the energy of its electrons energy levels.
What is ground state
Valid or Invalid: 2,2,1,-1/2
What is invalid
The NAME to describe when an element has the most amount of valence electrons possible
What is an octet