CORNELL NOTES
SHEET
EQ
What determines an element's
chemistry?
Chemical Bond
How do ionic compounds
form?
Ion
Ionic Bond
Chemical Formula
Subscript
Covalent Bond
How do molecular
compounds Form?
Molecular Compound
Molecule
What determines the
properties of metals?
Metallic Bond
Polar Bond
Non-Polar Bond
Name: Melina Darby
Class: Science Topic: Atoms + Bonding
Date: 10/18/2022
Period: 5
How can bonding determine the properties of a compound?
The number of valance electrons in each atom helps determine the chemical
properties of that element.
a lasting attraction between atoms, ions, or molecules that enables the
formation of molecules. EX: One atom of carbon (C) combines with two atoms
of oxygen (O) to form a double covalent bond in carbon dioxide (CO2).
When a neutral atom transfers one or more electrons to another atom, it results
in the formation of an ionic compound.
an atom or molecule with a net electric charge due to the loss or gain of one or
more electrons. EX: sodium, potassium, calcium, chloride, and bicarbonate
type of linkage formed from the electrostatic attraction between oppositely
charged ions in a chemical compound. EX: sodium chloride
an expression that shows the elements in a compound and the relative
proportions of those elements. EX: H2O, suggests that two hydrogen atoms
combine with one oxygen atom to form one molecule of water.
a small number written at the bottom of the symbol. EX: The tiny 2 in H20
consists of the mutual sharing of one or more pairs of electrons between two
atoms. EX: in water (H2O) each hydrogen (H) and oxygen (O) share a pair of
electrons to make a molecule of two hydrogen atoms single bonded to a single
oxygen atom.
Covalent bonds between the shared electrons of each atom hold the atoms
together to form a molecular compound.
consists of molecules whose formula represents the actual number of atoms
bonded together in the molecule. EX: water, which contains H2O molecules;
methane, which contains CH4 molecules; and hydrogen fluoride, which
contains HF molecules.
a group of atoms bonded together, representing the smallest fundamental unit
of a chemical compound that can take part in a chemical reaction. EX: H2O,
N2, O3, CaO, C6H12O6, NaCl
They are determined by several factors, including grain size, heat treatment,
atmospheric exposure, and temperature
the force that holds atoms together in a metallic substance. EX: Gold, silver,
and copper
A bond formed between two atoms with a difference in electronegativities by
sharing electrons. EX: water, hydrogen fluoride, sulfur dioxide, and ammonia
a type of chemical bond that is formed when electrons are shared equally
between two atoms. EX: the bond between two hydrogen atoms
SUMMARY: Write 4 or more sentences describing specific learning from these notes.
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