History
This scientist is known as the "father of chemistry" and is credited with bringing atomic theory back to the forefront of science.
Who was John Dalton?
This subatomic particle is positively charged and is the identifying characteristic of an element.
What is a proton?
Bohr studied the emission spectra of this element to develop his model of the atom.
What is hydrogen?
When an element has a different mass number than an atom of that same element, it means that this subatomic particle has changed between the two atoms.
What are neutrons?
This is the smallest particle of matter that retains the properties of an element.
What is an atom?
This scientist is best known for his discovery of the proton.
Who was Ernest Rutherford?
This subatomic particle is negatively charged and determines the overall charge of the atom.
What is an electron?
When an electron absorbs energy and "jumps" to a higher-energy orbital, we say it is _______.
What is the excited state?
The term "heavy water" refers to H2O with a hydrogen atom that contains 1 proton and 1 neutron, called deuterium. This version of an atom with a different mass number is called a(n) _______.
What is an isotope?
An element with the following notation has how many neutrons: 10B
What are 5 neutrons?
This scientist is best known for discovering the planetary model of the atom, where he proposed that electrons orbit the nucleus like planets orbit the sun.
Who was Niels Bohr?
This subatomic particle determines the atom's mass and influences its physical characteristics.
What is a neutron?
This is the term used to describe a specific, discrete amount of energy that can be absorbed or released by electrons.
What is quanta?
This is the result of alpha decay for the following element: 23892U
What is 23490Th?
An element with the following notation has how many electrons: 65Cu2+
What are 27 electrons?
This scientist is best known for the discovery of the quantum mechanical model of the atom.
Who was Erwin Schrödinger?
This part of the atom is where Bohr proposed electrons exist in a 2D circle rotating about the nucleus.
What are electron orbits?
The French scientist Louis de Broglie proposed that electrons are particles that can exhibit properties of both particles and waves. We call this ____-________ _______.
What is wave-particle duality?
This is the result of beta decay for the following element: 146C
What is 147N?
Calculate the average atomic mass for an element with the following isotopic information:
Atomic Mass % Abundance
1 12.0000 98.89%
2 13.0034 1.11%
What is 12.01 amu?
This scientist is best known for discovery of the neutron.
Who was James Chadwick?
This part of the atom is where Schrodinger proposed that electrons exist in a 3D "cloud" in a constant random motion or ellipses about the nucleus.
What are electron orbitals?
This scientist came up with a constant that led to Bohr developing the idea that electrons must exist in specific, fixed energy levels around the nucleus.
Who was Max Planck?
Write the proper atomic notation for an element with the following information: 92 p, 143 n, 92 e
What is 23592U?
Identify the element with the following isotopic information:
Atomic Mass % Abundance
1 12.0000 98.89%
2 13.0034 1.11%
What is carbon?