Sharing is Caring (Electrons)
What is a covalent bond?
A bond formed when two atoms share one or more pairs of electrons.
Which direction does atomic radius increase on the periodic table
Down a group and to the left
What is the correct name for NaCl?
Sodium chloride
How many electrons can the 1s orbital hold?
2 electrons
What is the relationship between wavelength and frequency?
They are inversely proportional.
How many total valence electrons are in a molecule of NH₃ (ammonia)?
8 valence electrons
The atomic number of an element tells you the number of what particle?
Protons
Write the formula for lithium bromide.
LiBr
What is the electron configuration of oxygen (atomic number 8)?
1s² 2s² 2p⁴
What constant represents the speed of light?
3.00 × 10⁸ m/s
How many bonds will carbon usually form in a covalent compound, and why?
Four bonds, because it needs four more electrons to complete its octet.
Define ionization energy.
Energy required to remove an electron from an atom.
What is the name of MgF₂?
Magnesium fluoride
Which element has the configuration [Ne]3s² 3p⁵?
Chlorine (Cl)
What is the formula that relates energy and frequency?
E = hν
Draw or describe the Lewis structure for O₂.
Each oxygen shares two pairs of electrons (a double bond), with two lone pairs remaining on each atom.
DAILY DOUBLE!!!
They don’t usually form bonds because they already have full valence shells.
Write the formula for calcium iodide.
CaI₂
What is the last orbital filled in a transition metal?
d orbital
Which color of visible light has the highest energy?
Violet
How many total valence electrons are in the molecule CO₂, and how are they arranged in the Lewis structure?
16 valence electrons; carbon in the center with two double bonds to oxygen (O=C=O).
Rank these elements by increasing atomic radius: Na, Mg, Al.
Al < Mg < Na
What is the correct formula for Aluminium Oxide?
Al₂O₃
What element has this configuration: [Kr]4d¹⁰ 5s² 5p³?
Antimony (Sb)
According to Bohr’s model, what happens when an electron drops from a higher to a lower energy level?
It emits a photon of light.