Easy Stuff
Identification
Isotopes
Electron Cloud Model
Electron Configurations
100
Negatively charged particles in an atom
What are electrons?
100
The number of _________ determines what kind of atom
What are protons?
100
Isotopes are atoms of the same elements that have a different number of _________.
What are neutrons?
100
A region of space around the nucleus where an electron is likely to be found.
What is orbital?
100
An electron configuration is the arrangement of electrons in the __________ of an atom.
What are orbitals?
200
Positively charged particles in an atom
What are protons?
200
___________ of an element equals the number of protons in an atom of that element.
What is atomic number?
200
True/False: all isotopes of an element have the same atomic number.
What is true?
200
This is a representation of all the atoms orbitals.
What is an electron cloud?
200
All electrons have the lowest possible energies.
What is ground state?
300
Particles in an atom that is not charged.
What are neutrons?
300
Tells you the number of protons and neutrons in an atom's nucleus.
What is mass number?
300
True/False: isotopes of an element have the same mass number.
What is false?
300
True/False: You can find out the exact location of an electron at any given time.
What is false?
300
Electrons are in higher energy levels leaving lower energy levels unfilled.
What is excited state?
400
These two subatomic particles have about the same mass.
What are protons and neutrons?
400
An atoms has 7 protons and 6 neutrons, what is this atoms mass number?
What is 13?
400
True/False: Most of the time there is not a difference in the physical or chemical properties of different isotopes of an element.
What is true?
400
The electron cloud model and Bohr's model share this common idea.
What are energy levels?
400
An atom in a ground state is (more/less) stable than an atom in an excited state?
What is more?
500
Microscope used to create a digital picture of the atoms of a sample's surface
What is a scanning tunneling microscope?
500
Aluminum has a mass number of 27 and it has 14 neutrons. What is aluminums atomic number?
What is 13?
500
This is an example of when isotopes do change physical properties.
What is heavy water?
500
There are ______ orbitals in the 3rd energy level.
What is 9?
500
When electrons move from a higher energy level to a lower energy level, the atom releases energy in the form of ____________ light.
What is visible?
M
e
n
u