An atom is…
The smallest unit of
_____________.
Anything that has ____________ and
takes up _____________ is matter!
Everything is made up of ________________; even you!
An Atom is made of…
________________
– negatively charged
particles that orbit the
nucleus (center).
__________________
– particles that are neutral
or have no charge. These
are inside the nucleus.
________________ –
positively charged particles
inside the nucleus
Protons in the atom’s nucleus attract the electrons and keep them in
orbit around the nucleus.
Atoms are small
• Atoms are so small that they cannot be
______________with regular microscopes.
There are special microscopes that can give you
a feel of what atoms look like.
• The number of protons in an atom determine
what type of ________________ it is. This is
called the Atomic Number.
So that means all the elements on the Periodic Table are different types of
atoms (with different numbers of protons and electrons).
A molecule is made of at least two atoms.
Water molecule
A ________________ is a
molecule that contains two different
types of atoms (elements).
NOT ALL Molecules are
__________________