Isotopes
Isotopes of the same element have the same number of these.
Protons
Where are electrons found in an atom?
Cloud/Orbital/Shell
This scientist developed the nuclear model in 1911.
Ernest Rutherford
These are the 4 letters which represent the different shapes of electron orbitals
S, P, D, F
The atomic number is equal to the number of these
Protons
Isotopes have a different number of these.
Neutrons
Outmost electrons which tend to be easier to remove than core electrons and contribute to the chemical properties of an element are called what?
Valence electrons
Neils Bohr developed this model in 1913
Planetary Model
Which element has the electron configuration 1s2 2s2 2p6 3s2 3p6 4s1
Potassium (K)
Name 2 elements common in living systems
Carbon, Nitrogen, Oxygen, Hydrogen
An atomic weight is what kind of average of isotope masses?
Weighted
What is the typical ionic charge of Calcium?
2+/+2
A model which depicts protons, neutrons, and electrons is called what? (We practiced making these)
Bohr-Rutherford Model
The abbreviated electron configuration for this element is: [Kr] 4d10 5s2 5p4
Tellerium
Refers to learning to see from one eye with the strengths of Indigenous knowledges and ways of knowing, and from the other eye with the strengths of Western knowledges and ways of knowing.
Etuaptmumk - Two-Eyed Seeing
Because isotopes have a different number of neutrons, each isotope will have a different what?
Atomic Mass
The Pauli Exclusion Principle states this.
Two electrons that are present in the same orbital must have opposite spins
A model which depicts only a chemical symbol and valence electrons is called this.
Lewis Dot Diagram/Lewis Dot Structure
The abbreviated electron configuration for gallium.
[Ar] 3d10 4s2 4p1
4 elements that are common in living systems are
Carbon, nitrogen, oxygen, hydrogen, sulfur, phosphorus, calcium
Name and explain one practical application of isotopes.
Rhisotope Project
Cesium in Wine
Iodine 131 & others in medical imaging
Etc
Elements tend to bond in such a way that each atom has eight electrons in its valence shell, giving it the same electronic configuration as a noble gas. What is this rule called?
Octet Rule
Schrodinger developed the quantum model in 1926. In this model, electrons were said to be in what?
Clouds of possibility.
Hund's rule states this.
Every orbital in a subshell is singly occupied with one electron before any one orbital is doubly occupied
The first atomic model, developed by John Dalton was this.
The solid sphere model.