Download atoms in their elemental state are neutral

Hints:
 All atoms in their elemental state are neutral
 Atomic # = the # p+ in that atom
 Atoms may contain any or all of the following subatomic particles: protons,
neutrons and electrons
o protons = +1 charge, weigh 1 atomic mass unit (amu)
o electrons = –1 charge, negligible mass
o neutrons = no charge, weigh 1amu
 Protons and neutrons are found in the nucleus
 Electrons are found in the energy levels surrounding the nucleus and are
packaged as pairs in orbitals.
o e–‘s fill the lowest numbered energy levels first. One e– is added to
each orbital in an energy level before e–‘s are paired in an energy
level. Once an energy level contains the maximum number of
electrons, any subsequent electrons will be added to the next energy
level.
Atomic Structure Model Kit Parts
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RED POM = proton (p+)
WHITE POM = neutron (no)
BLACK POM = electron (e–)
Atomic Structure Outline
*Using the poms and atomic
structure models provided, complete
the models for the atoms listed and
fill in the tables with necessary
information.
Part 1: Atomic Structure
1. Construct a model for the FIRST 10 atoms – one a time. Draw a cartoon
image of the atom on a notecard. Be sure to label the subatomic particles,
nucleus, and energy levels. Then write the electron configuration (see
poster for how to record these).
SAMPLE ELEMENT NOTECARD:
ELEMENT NAME:
ELECTRON CONFIGURATION:
# p+
# no
# e–
Atomic #
Atomic
Mass
2. What is similar between the atomic structures of the atoms in 1–3?
3. What is different in the atomic structures of atoms 1-3?
4. How do the number of protons, neutrons, and electrons relate to (if at all)
atomic # and atomic mass?
5. Use the following information to make notecards for these 17 atoms:
# p+
# no
# e–
Atomic #
5
11 amu
20
16
20
16
6
12 amu
7
14 amu
19
9
19
31 amu
4
8
9 amu
8
11
23 amu
18
40 amu
13
27 amu
10
18
12
39 amu
10
15
10
Atomic
Mass
17
12
14
28 amu