Atomic History
All matter is made of tiny, indivisible particles called _______.
atoms
Which subatomic particle is (+)?
protons
How does light move through space?
waves
how many orbitals does the s sublevel have?
1
how many max electrons can the p sublevel fit?
6
J.J. Thomson's model was responsible for discovering the ______.
electron
When we change the number of protons we create a ________.
Element
Which light has the HIGHEST frequency?
how many electrons can fit in an orbital?
2
How many MAX electrons can the d sublevel fit?
10
Rutherford discovered the nucleus using his _____ _____ experiment.
gold foil
What are the three subatomic particles?
1. Electrons
2. Protons
3. Neutrons
A prism separates light into the colors it contains. White light produces a _______ of colors.
rainbow
what shape is the p orbital?
dumbbell
No two atoms can have the same set of quantum numbers This essentially means electrons in the same orbital have opposite spins.
Pauli Exclusion Principle
How can an electron increase its energy?
jump to an energy level FARTHER from the nucleus
Did this ion gain or lose electrons? How many?
Ca2+
LOST 2
The __________ of the spectral lines are characteristic of the element, and they make up the atomic emission spectrum of the element.
wavelengths
Where does quantum mechanics come from?
inability to know two characteristics of motion at the same time known as --> Heisenberg’s Uncertainty Principle
Which noble gas would we use when writing Bromine's (Br) configuration?
What happened in Rutherford's experiment that showed the nucleus was present? Explain using alpha particles.
Alpha particles are (+) and bounced off the nucleus at different angles but never went through it. They were repelled.
How many ions can an element have on its outermost energy level MAX? What is this called?
8 and it is called the octet rule
When does an electron emit light energy?
when it FALLS from its excited state
The orbital tells the _______ _______ within a sublevel that an electron may follow. It is represented with the symbol ml .
particular path
What is Nitrogen's electron configuration?
1s²2s²2p³