2019 Mod 3 Flashcards
What was Rutherford’s main contribution to the study of atomic structure?
He proved that the plum putting model of an atom was incorrect and he formed the planetary model which became the base for Bohr’s model
What do we call the experimental apparatus that William Crookes used in his experiments and what did he discover with it?
Crookes tube
And he discovered cathode rays (electrons)
If two electrically charged particles repair one another, what can we conclude about their charges?
They have the same charge
If a substance has nine positive charges and 11 negative charges, is it positively charged, negatively charged, or neutral
It is negatively charged because it has more negatively charged particles
Give the location within the Adam for a protons, electrons, and a neutron
The proton and neutron are squished together at the center of the atom and the electricians are on the outside of the nucleus
Why is it so hard to separate one isotope from another?
Because they behave identically in terms of chemistry
What were the differences between the plum putting model of an Adam and the planetary model of an Adam
The plum putting model of an atom said that all the positive and negative charges were equally distributed throughout the entire item. The planetary model however concentrated the positive charges at the center of the Adam and made the negative charges were all around the outside inset orbits
What is meant by saying that wavelength and frequency are inversely proportional to each other
As wavelength get longer frequency gets shorter
If you have an orange light bulb and a violet one which is waves with the largest wavelength? Which he made light of higher frequency?
Largest wave length equals orange higher frequency equals Violet higher energy equals Violet
Two lightbulbs email light of the same color however when is much brighter than the other what can you say about the wavelength and I am content of the wave being emitted right bulb
The brighter one is admitting more amplitude but the wavelength of both of them are the same
If an atom absorbs energy what happens to it selection if it’s Adams are emitting light what are the electrons doing
When the atom absorbs energy the electrons jump to higher orbitals when the atom emits light the electrons drop to lower orbitals
What is the concept of ground state and why is it so important in chemistry
Egg the ground state is the lowest possible energy state were given substance. It is important to chemistry because matter is lazy and likes to be at the ground state
The Three fundamental particles that make up and Adam are the proton neutron electron order them in terms of decreasing mass
Neutron, protons, electrons
Define and give one example of a physical constant
A physical constant is a measurable quantity in nature that does not change
C equals 3.0×10 to the 8th m/second
H equals 6.63×10 to the -34 J/HZ
Describe what an orbital is
And orbital is a region of space where in electron is most likely to be found
