Card Set Information
chemistry 9th grade science 9a lrei matt glickman
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What is an ATOM?
the smallest part of an element
particles that make up an atom are called _____________.
What are the 3 subatomic particles?
PROTONS, NEUTRONS and ELECTRONS
Electrons have a ________ charge. (positive, negative, or neutral)
Neutrons have a ________ charge (positive, negative or neutral)
The number of protons in an atom is known as ___________.
The # of protons + the # of neutrons in an atom is known as __________.
What are VALENCE ELECTRONS?
Electrons ion the last energy shell (18) of the atomic structure
An element's ___________ is indicated by its group # on the periodic table.
amount of VALENCE ELECTRONS
How do you find the # of NEUTRONS that an element has?
by subtracting its ATOMIC MASS from its ATOMIC NUMBER (Atomic Mass - Atomic #)
What is an ION?
An ION is an atom that has gained or lost an electron.
What is the notation for SULPHATE?
What is the notation for CARBONATE?
What is the notation for HYDROXIDE?
What is the notation for NITRATE?
What is the notation for PHOSPHATE?