EMR
Atoms
Electrons
Subatomic particles
Definitions
Atomic model
100
This is the relationship between wavelength and frequency.
What is inverse relationship?
100
Determines the identity of an element.
What is the number of protons, or atomic number?
100
Define the term ion.
What is an atom with a net charge, or an atom that has unequal numbers of protons and electrons?
100
List the charge and mass of each subatomic particle.
What is ...
proton - positive charge and 1 amu
neutron - neutral charge and 1 amu
electron - negative charge and 1/1836 amu
100
The weighted average mass of all of an element's isotopes.
What is the average atomic mass?
100
Particle found in the rings in the Bohr diagram.
What are electrons?
200
This is the type of radiation with the longest wavelength.
What is radio?
200
A (n) _____ is a very small particle that is the basic unit of matter.
What is an Atom?
200
Define valence electron.
What is an electron in the outermost energy level of an atom?
200
The most dense structure in an atom called _______ is made up of ______ and ______.
What is : nucleus; protons and neutrons?
200
The number of protons in an atom of an element is its
What is atomic number?
200
Draw a Bohr model of Boron.
What is 2 electrons in the first shell and 3 electrons in the second shell?
300
Compare the frequency and wavelength of red and blue light.
What is red has a longer wavelength and less frequency, and blue has shorter wavelength and is more frequent?
300
Isotopes of the same element have the same number of protons but different number of _________
What is neutrons?
300
The current atomic theory includes the ________ model of electrons.
What is the electron cloud?
300
How many electrons can fit in the first, second, and third shell?
What is 2, 8, 8 (s & p) or (18 with 3d orbital)?
300
Describe the difference between atomic number and mass number.
What is : The Atomic Number is the number of protons in an atom. The Mass Number is the sum of the number of protons and neutrons in an atom of a particular isotope.
300
Number of "shells" or "rings" in an oxygen atom based on the Bohr model. Then, number of electrons found in the outermost shell.
What is 2 shells and 6 electrons in outermost shell?
400
An element gas is electrified and electrons within the atom move from the 2nd energy level to the 5th energy level. The electron has ______ energy.
What is absorbed?
400
In an atom, which has the least mass? A: nucleus B: proton C: neutron D: electron
What is : electron
400
Explain how an electron becomes 'excited".
What is the electron absorbs energy and jumps to a higher energy level (orbital)?
400
The probable location of an electron.
What is the electron cloud or orbital?
400
Ground state configuration.
What is the lowest possible energy configuration for the electrons. For representative elements, lowest shells fill first.
400
Compare Bohr models and Lewis dot models.
What is Bohr models include the electrons in each orbital, Lewis dot only includes valence shell electrons?
500
Considering the Helium spectrum which line represents the largest distance travelled by an electron?
What is the violet line with the shortest wavelength?
500
Two subatomic particles that determine the atom's mass.
What are Protons and Neutrons? Electrons are too light (relatively) to count towards the atomic mass.
500
This happens when an electron returns to ground state from an excited state.
What is emit energy/light and jump to the lowest energy configuration?
500
Two particles that determine the net charge of an atom.
What are protons and electrons?
500
The atomic mass unit is based on what element.
What is Carbon-12? That is, Carbon is used as the standard to define that each proton and neutron has a relative mass of 1 amu.
500
Draw the Lewis dot diagram for bromine and bromide ion.
What is Br and Br 1-?