Stars Unit
The name of the event that scientists hypothesize created all of the matter in the universe.
The Big Bang
Protons are ______charged Neutrons are ______charged Electrons are ______charged
What is positive neutral negative
What is the electron configuration of potassium?
What is 1s2 2s2 2p6 3s2 3p6 4s1
The type of element that is good at conducting electricity
metals
When do ionic bonds form?
What is between metal and nonmetal OR very different electronegativity values
The elements that were created by the big bang
H, He
Isotopes of an element have a different
What is number of neutrons
Stable electron configurations are likely to contain -
What are filled energy sublevels?
Group number of Halogens and Noble Gases on the periodic table
7A 8A or 17 18
What can freely move through metallic bonds?
What are electrons?
The main source of evidence for the big bang - shows that stars are mostly drifting away from each other
Red shift
The gain or loss of an electron creates a(n)__________
What is an ion?
Emission of light from an atom occurs when... (think flame test)
What is an electron falls from a higher to a lower energy level, releasing energy in the process
What has a larger atomic size, lithium or oxygen?
Lithium
When are covalent compounds formed?
Between two nonmetals
What is a supernova?
A red giant imploding and releasing it's materials.
The _____________ Model of an atom shows electrons moving around the nucleus, while the ___________ __________ __________ shows electrons in a cloud around the nucleus.
Bohr model, quantum mechanical model
Draw the shape of an s, p, and d orbital
s - sphere
p - dumbell
d - double dumbell / four leaf clover
The definition of electronegativity
What is how "hungry"an atom is for electrons
Pick one element that combined with oxygen would form an ionic bond, and one that would form a covalent bond
calcium / sulfur
What elements are created in a red giant?
What elements are created in a supernova?
In a red giant, elements up to iron are made.
In a supernova, all elements up to Uranium are made.
How many protons, neutrons, and electrons does Carbon-14 have, with a -1 charge?
What is protons- 6 neutrons -8 electrons -7
What element has the electron configuration 1s2 2s2 2p6 3s2 3p1 ?
What is aluminum?
What charge do the Nitrogen group elements attain when forming an ion?
-3
Draw the lewis dot structure of CFH3
(drawing)