Atoms
Periodic Table
HR Diagram
Doppler Effect
Patterns
100
What is an atom?
The smallest unit of matter
100
What is the difference between atomic number & mass number?
Atomic number - # of protons
Mass number - # of protons + neutrons
100
How would we classify a star with a temp of 5000℃ & a luminosity of 105?
red supergiant
100
Is SR-5 red-shifted or blue-shifted?
red
100
Blue-shifted stars are located on the left/right side. Red-shifted stars are located on the left/right side.
Left, right
200
A new element has been discovered that is shiny, malleable, a good conductor, & forms cations. How should it be classified?
metal
200
What is the atomic number?
What is the mass number?
Atomic # - 79
Mass # - 196.97
200
How would we classify a star with a temp of 25,000℃ & a luminosity of 10-3?
White dwarf
200
Which is moving closest to the same speed as Venus?
nearby star
200
True or false: As mass of main sequence stars increases, so does their luminosity.
False
300
Where are protons, neutrons, & electrons located?
Protons & neutrons - nucleus
Electrons - orbitals
300
Where would we place an element with high nonmetallic character?
top right
300
How would we classify a star with a temp of 7,000℃ & a luminosity of 1?
Main sequence
300
Which is/are moving away from Bear Galaxy?
Bernard’s Galaxy & SR-5
300
Each atom can hold __ electrons in the first orbital. Every orbital after that can hold up to __ electrons.
2 & 8
400
Hydrogen has __ electrons in its first orbital, while all others have __.
Hydrogen - 1
Others - 2
400
Where would we place an element with low electronegativity & electron affinity?
Bottom left
400
A blue giant has a luminosity of 105. What could its temperature range be?
15,000-30,000℃
400
Which is/are moving toward Andromeda Galaxy?
none
400
Which characteristics are highest in the top right?
Which characteristics are highest in the bottom left?
Top right - ionization energy, electronegativity, electron affinity, nonmetallic character
Bottom left - atomic radius * metallic character
500
How many valence electrons does this element have? Which group does it belong to?
3 electrons
3 groups
500
How many protons & neutrons does aluminum have?
Protons - 13
Neutrons - 14
500
A red giant has a temperature of 5,000℃. What could its luminosity range be?
10^1-10^3
500
What is the doppler effect?
As objects come toward you, we experience ___-shift. Waves get longer/shorter & frequency increases/decreases.
As objects move away, we experience ___-shift. Waves get longer/shorter & frequency increases/decreases.
Change in wavelength & frequency due to an object moving relative to something.
Blue, shorter, increases
Red, longer, decreases
500
What is the pattern seen for main sequence stars?
As temperature increases, so does luminosity.