Never Trust Atoms, They
Make Up Everything!
Jan 5th
Learning Target: I will recall
and review what I already know
about atoms and chemistry.
Catalyst: Draw an atom. Include
and label the subatomic
particles.
• Science Expo Introduction:
Tuesday, January 12th
• Science Tutoring – Mon & Thurs 2:30 – 3:30.
• Your science journal must be up to date to
be eligible to retake an assessment.
Working with your table
group, answer the following
five questions on the white
board. Be prepared to share
your answers with the class.
1. The 3 subatomic particles
that make up an atom are
called:
A.
B.
C.
2. The two subatomic particles
that make up the nucleus of
an atom are the (select one):
Protons and Electrons
Protons and Neutrons
Neutrons and Electrons
3. Label the 3 subatomic
particles in this neutral atom:
B.
A.
C.
4.What is the charge of each
subatomic particle?
A. Electron: _________
B. Proton: _________
C. Neutron: _________
5. Match the word to
its definition:
WORDS
Atom
Molecule
Element
Matter
A. anything that has mass
and volume: ________
B. is made up of two or
more atoms bonded together: ________
C. the smallest stable unit of
matter: ________
D. all atoms that have the same
number of protons: ________
1911
Nucleus
Electron
1932
Proton
Nucleus
Neutron
Electron
1947
Nucleus
Proton
Mesons
Neutron
Electron
1968
Nucleus
Proton
Mesons
Gluons
Neutron
Electron
Quarks
Matter
Anything that has mass and that
takes up space.
Atom
A basic unit of matter consisting of a
dense central nucleus surrounded by a
cloud of negatively charged electrons.
Molecule
A stable unit of two or more atoms
held together by chemical bonds.
+
=
Element
A pure chemical substance
composed of all atoms that have
the same number of protons.
Vocabulary: In Your Journal
Atom – the smallest stable unit of matter
Proton – positive particle in the nucleus of an atom
Neutron – neutral particle in the nucleus of an atom
Electron – negative particle found orbiting the
nucleus of an atom
Nucleus – the center of an atom that contains
protons and neutrons and most of the mass
Element – all atoms that have the same number of
protons