Atoms and Elements Study Guide
Students can also study at http://quizlet.com/21753991/atoms-and-elementsflash-cards/
*Students will need to know how to use a diagram of a model and identify
the number of atoms, the nucleus, electron orbit, neutron path, protons,
neutrons and electrons. Examples can be found in students’ text and class
activities.
* Students will need to know how to use a Periodic Table to identify an
element’s atomic number, physical states, symbols, and similar properties.
Additionally, given melting points for certain elements, students will need
to be able to infer which elements are liquids, solids or gases.
Nucleus: Center of an atom, made
The attraction between electrons
up of protons and neutrons
and protons hold together atoms.
Element: Substance made up of only
Atomic number of an element: The
one kind of atom
number or protons
Proton: subatomic particle with a
*Periodic Table arrangement: by
positive charge
atomic number and similar
Atom: smallest unit of an element
properties.
with all the properties of that
Metals: Conduct electricity, ductile,
element
luster, malleability, and conduct
Neutron: subatomic particle with no
heat.
charge
H2CO3 : The formula for a molecule
*Periodic Table: arrangement of
that has1 carbon atom, 2 hydrogen
elements by similar properties
atoms, and 3 oxygen atoms.
Compound: substance made up of
Insulators: an element that binds
the atoms of two or more elements
tightly to their atoms and conducts
Molecule: two or more atoms joined
hardly any electricity.
together
Atom’s Element: determined by the
Electron: subatomic particle with a
number of protons.
negative charge