Atomic Structure
What two subatomic particles make up the nucleus?
neutrons and protons
Atomic number is equal to which two subatomic particles?
Protons and electrons
bubbles/gas forming, temperature change, odor change, unexpected color change, solid forming
As energy increases, wavelength___________
decreases
What are the units for frequency?
hertz/Hz
Where are electrons located in the atom?
In the rings/outside the nucleus
How many protons are in calcium?
20
Physical
What type of relationship do wavelength and frequency have?
inverse or as one increases, the other decreases
Finish the formula
c= _____ x ______
In a Bohr diagram, what is the maximum number of electrons the 3rd energy level can hold?
8
How many electrons are in a neutral atom of sodium?
11
Burning a candle is an example of a ________change
chemical
What is the subatomic particle (proton, electron, neutron) that is responsible for light?
electron
What is the value for c, the speed of light (including units)?
3.0 x 108 m/s
In a neutral atom, protons always equal ________.
Electrons
calculate the amount of neutrons in an isotope of Arsenic-79
46 neutrons
Physical
Name another area of the electromagnetic spectrum besides visible light
Gamma Rays, X-ray, UV, Infrared, Microwaves, radio
what are the units for wavelenth?
What is an isotope?
an atom with a different mass b/c it has a different number of neutrons
Write the nuclear notation for barium with 128 neutrons
18456Ba
Why isn't a chemical change reversible?
A new substance is made, and you cannot reverse that.
If a wave is described as having a short wavelength, what can we assume about its frequency and energy?
high frequency/energy
calculate the wavelength of a wave with a frequency of 3.21 x 1014 Hz
3.0 x 108 / 3.21 x 1014 = 9.3 x 10-7 m