Download ATOMIC NUMBER…it can be found on the periodic table

Name: ______________________________________________
Atoms/Periodic Table Review Guide Answers
Across
3. This element is located in the sixth period and second
group. (BARIUM…remember that groups go up and down and
periods go left to right)
6. The particle inside the atom with no charge.
(NEUTRON…remember Nelda neutron who likes to hang out in
the nucleus arcade? She doesn’t have any personality!)
7. The particle inside the atom with a positive charge.
(PROTON…remember Patty Proton? She is always positive when
she hangs out in the nucleus arcade!)
9. This family of elements is located in the 18th group of
the periodic table and are mostly inert (non-reactive).
(NOBEL GASSES…these are the elements that don’t react
because their outer shells are filled up with electrons!
To quote Bruno Mars: They are beautiful just the way they
are!)
14. These are elements on the periodic table that are both
metals and non-metals.
(METALLOIDS…remember those staircase elements that weren’t
quite metals but weren’t non-metals either)
16. Elements in the family Alkali Metals like to lose one
of these in order to complete their outer shell.
(ELECTRONS…since Alkali metals only have one electron in
their outer shell they like to combine with other element
and give their electron away!)
Down
1. This family is in the 17th group of the periodic table.
(HALOGENS…have seven electrons in their outer shell)
2. The number of protons in an atom's nucleus.
(ATOMIC NUMBER…it can be found on the periodic table)
4. Vertical rows on the periodic table.
Name: ______________________________________________
(GROUPS…they go up and down!)
5. Sum of the protons and neutrons in the nucleus of an
atom.
(ATOMIC MASS…remember protons plus neutrons = atomic mass.
Or Atomic Mass – Atomic Number = number of neutrons).
6. The very small center of the atom that holds protons and
neutrons.
(NUCELUS…holds all of those little guys)
8. Elements in the family Alkali Metals are considered to
be more ______________________ than other elements because
they like to combine with other elements.
(REACTIVE…remember Cesium and Rubidium from the video?
What happened when they reacted with water?)
10. Argon would be considered to be in what normal phase?
(GAS…your periodic table would tell you this!)
11. Horizontal rows on the periodic table.
(PERIODS…these go left to right or right to left)
12. These particles move rapidly around the nucleus with a
negative charge.
(ELECTRONS…remember Elliot wasn’t allowed into the nucleus
arcade so he boogied on his Harley around the arcade)
13. Gold, Iron, and Titanium are located in the
______________ metals family.
(TRANSITION…lovely elements they are)
15. A chart that organizes elements into categories based
on their different properties.
(PERIODIC TABLE…Remember that good looking dude Dmitri? He
organized all of those elements for us to easily see!)
Draw the atomic model of the element Oxygen. Make sure you include the correct number of
protons, neutrons, and electrons (atomic mass is 16).
There should be 8 protons inside of the nucleus and 8 neutrons. The number of neutrons is
determined by taking the atomic mass (16) and subtracting the atomic number (8). There are 8
electrons since they have to equal out the number of protons! The electrons float outside of the
nucleus in shells. The first one holds 2
and the second shell can hold 8.