Search found 22 matches

by Kimme Chun 1I
Sun Oct 27, 2019 4:49 pm
Forum: Ionic & Covalent Bonds
Topic: Valence Electrons
Replies: 16
Views: 257

Re: Valence Electrons

For the s and p block, the number of valence electrons is the last number in the group. For the d block, you have to figure out the electron configuration to find how many electrons are in the outermost shell.
by Kimme Chun 1I
Sun Oct 27, 2019 4:47 pm
Forum: Ionic & Covalent Bonds
Topic: Double bond placement
Replies: 15
Views: 227

Re: Double bond placement

Our TA told the HONC rule where H likes to have 1 bond, O likes to have 2, N likes to have 3, and C likes to have 4. If any of these elements are in the molecule you are trying to draw, follow this rule to help.
by Kimme Chun 1I
Sun Oct 27, 2019 4:32 pm
Forum: Ionic & Covalent Bonds
Topic: Ionic vs. Atomic Radii
Replies: 4
Views: 61

Re: Ionic vs. Atomic Radii

Ionic radii show the same trends on the periodic table as atomic radii. Also, cations seem to have smaller radii than their parent atoms and anions have larger radii than their parent atoms.
by Kimme Chun 1I
Sun Oct 27, 2019 4:27 pm
Forum: Ionic & Covalent Bonds
Topic: Resonance
Replies: 10
Views: 128

Re: Resonance

When a molecule has resonance, it means that it can exist in different ways. The bonding can change on these molecules and it can be shown through different Lewis dot structures.
by Kimme Chun 1I
Sun Oct 27, 2019 4:23 pm
Forum: Ionic & Covalent Bonds
Topic: ionization
Replies: 5
Views: 88

Re: ionization

The highest ionization energy is at the top right of the periodic table and the lowest is at the bottom left. It is the amount of energy that is required to remove an electron from an atom.
by Kimme Chun 1I
Sun Oct 20, 2019 8:39 pm
Forum: Photoelectric Effect
Topic: Speed of Light
Replies: 29
Views: 340

Re: Speed of Light

The speed of light is a constant and is represented by the letter "c". It is approximately 3.0*10^8 m/s.
by Kimme Chun 1I
Sun Oct 20, 2019 8:36 pm
Forum: Photoelectric Effect
Topic: Threshold Energy
Replies: 7
Views: 131

Re: Threshold Energy

The electrons will be emitted but KE will equal 0.
by Kimme Chun 1I
Sun Oct 20, 2019 8:34 pm
Forum: Photoelectric Effect
Topic: Intensity v Frequency
Replies: 5
Views: 83

Re: Intensity v Frequency

The frequency is referring to how much energy a photon has and the intensity is referring to how many photons are present.
by Kimme Chun 1I
Sun Oct 20, 2019 8:25 pm
Forum: Photoelectric Effect
Topic: The Work Function
Replies: 15
Views: 179

Re: The Work Function

The work function and threshold energy is the least amount of energy needed to eject an electron from a metal.
by Kimme Chun 1I
Sun Oct 20, 2019 4:48 pm
Forum: Wave Functions and s-, p-, d-, f- Orbitals
Topic: Shell, Subshell, Orbital Terminology
Replies: 8
Views: 210

Re: Shell, Subshell, Orbital Terminology

This is super helpful. Thank you for the clarification.
by Kimme Chun 1I
Sun Oct 20, 2019 4:34 pm
Forum: Wave Functions and s-, p-, d-, f- Orbitals
Topic: Advice for studying
Replies: 92
Views: 1940

Re: Advice for studying

Doing the homework problems can be helpful because you really need to have an understanding of the concept before you can complete the problem so working on the problems will help you understand the concepts better.
by Kimme Chun 1I
Sun Oct 13, 2019 9:06 pm
Forum: Properties of Light
Topic: Intensity & Amplitude
Replies: 7
Views: 141

Re: Intensity & Amplitude

The amplitude tells you the intensity of the light. The intensity is how bright it is. If the amplitude increases, so does the intensity.
by Kimme Chun 1I
Sun Oct 13, 2019 8:58 pm
Forum: Properties of Light
Topic: Quick question on equations
Replies: 5
Views: 50

Re: Quick question on equations

It might be useful to know some of the basic equations just to make the calculations faster, but there will be an equation sheet on tests.
by Kimme Chun 1I
Sun Oct 13, 2019 8:53 pm
Forum: Properties of Light
Topic: De Broglie's Equation
Replies: 4
Views: 40

Re: De Broglie's Equation

You can use the De Broglie equation to find out if a particle has wavelike properties by calculating the wavelength.
by Kimme Chun 1I
Sun Oct 13, 2019 8:48 pm
Forum: Properties of Light
Topic: Photons
Replies: 4
Views: 60

Re: Photons

Apparently Einstein's equation E=mc^2 explains why photons have no mass. It is a particle of light and a stream of photons acts like a wave.
by Kimme Chun 1I
Sun Oct 13, 2019 8:45 pm
Forum: Properties of Light
Topic: Photoelectric Effect
Replies: 7
Views: 72

Re: Photoelectric Effect

A vacuum provides a controlled environment where there is less chance of interference with outside factors
by Kimme Chun 1I
Sun Oct 06, 2019 3:26 pm
Forum: Accuracy, Precision, Mole, Other Definitions
Topic: Homework for Week 2
Replies: 4
Views: 116

Re: Homework for Week 2

I would say try to avoid the problems you did before because it's really just for practice and your own benefit. If a problem looks familiar, try to do a different one.
by Kimme Chun 1I
Sun Oct 06, 2019 3:18 pm
Forum: Accuracy, Precision, Mole, Other Definitions
Topic: Theoretical vs. Actual Yield
Replies: 38
Views: 3709

Re: Theoretical vs. Actual Yield

The actual yield is to take into account the flaws that could occur in an experiment. Human error could offset the expected results, or the theoretical yield.
by Kimme Chun 1I
Sun Oct 06, 2019 3:18 pm
Forum: Accuracy, Precision, Mole, Other Definitions
Topic: Theoretical vs. Actual Yield
Replies: 38
Views: 3709

Re: Theoretical vs. Actual Yield

The actual yield is to take into account the flaws that could occur in an experiment. Human error could offset the expected results, or the theoretical yield.
by Kimme Chun 1I
Sun Oct 06, 2019 3:11 pm
Forum: Accuracy, Precision, Mole, Other Definitions
Topic: sig figs
Replies: 20
Views: 285

Re: sig figs

How do I tell what 0's are significant and which aren't?
by Kimme Chun 1I
Sun Oct 06, 2019 3:10 pm
Forum: Accuracy, Precision, Mole, Other Definitions
Topic: Naming Formulas
Replies: 3
Views: 75

Re: Naming Formulas

I think he said anything that's a constant or a formula will be given for the test.
by Kimme Chun 1I
Sun Oct 06, 2019 3:08 pm
Forum: Accuracy, Precision, Mole, Other Definitions
Topic: Mole help [ENDORSED]
Replies: 8
Views: 137

Re: Mole help [ENDORSED]

A mole is a unit of measurement similar to a dozen. When you say you have a dozen of something, you have 12 of it. When you say you have a mole of something, it means there are 6.022*10^23 of it

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