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Integrated Science: Chemistry
Structure of the Atom
Scientific Shorthand
•Scientists have developed their own _____________________ for dealing with
long, complicated names.
•Chemical symbols consist of one _____________ letter or a capital letter plus
one or two _____________________ letters.
Chemical Symbols
•__________________ matter!
•Element symbols contain __________ capital letter followed by lowercase
letter(s) if necessary.
•Scientists use _______________ letters for some elements because there are
_____________ elements than letters.
Metals that form
Bright blue
Solid compounds
Co vs. CO
Poisonous Gas
Atomic Components
•An element is matter that is composed of one type of _____________, which is
the ________________ piece of matter that still retains the
________________ of the element.
•Atoms are composed of particles called ___________________,
_________________, and _________________________
Atomic Components
•Protons and neutrons are found in a small positively charged center of the atom
called the ____________________ that is surrounded by a cloud containing
electrons
•______________________ are particles with an electrical charge of 1+.
Atomic Components
•_____________________ are particles with an electrical charge of 1–. This is
the particle that moves around the nucleus.
•_____________________________ are neutral particles that do not have an
electrical charge.
•The ______________________ is the central core of an atom.
Subatomic Particles
ATOM
NUCLEUS
ELECTRONS
PROTONS
NEUTRONS
POSITIVE
CHARGE
NEUTRAL
CHARGE
NEGATIVE CHARGE
Quarks—Even Smaller Particles
•Protons and neutrons are made up of smaller particles called
_________________.
•So far, scientists have confirmed the existence of _______________ uniquely
different quarks
Quarks
•Scientists theorize that an arrangement of _______________ quarks held
together with the strong nuclear force produces a _____________.
•Another arrangement of ____________ quarks produces a _____________