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CHEMISTRY

by Mrs. Robles
Across
This totally outdated model can still teach us a lot about electron configurations.
We are _____! This is another word for the the vertical columns on the periodic table.
I am ____ that the nucleus has a _____ charge.
These are the tiny, negatively charged particles in an atom.
If a molecule does not have an overall charge, it is said to be ____.
LiCl is an example of this type of chemical compound.
Carbon takes this shape when it makes four single bonds.
Electrons exist in a "____".
In a pyramidal shape, there is ___ ___ pair(s).
As you move _____ the periodic table, the atomic radium decreases.
In an oxygen molecule the bond is ___-polar.
These are the rules that determine the shape molecules will take.
Down
These can be very big or very small. They are usually formed when things are covalently bonded.
In an ionic bond, this is the name of the positive ion.
____ is great! All atoms want to have ____ valence electrons.
An increase in electron energy levels causes this important phenomenon.
When carbon makes one double bond and two single bonds, it is said to be sp2 ____.
The bond between Carbon and Hydrogen is always this type of bond.
Water, methane and NaCl are all examples of these.
The elements of life usually make these types of compounds.
The Periodic ____ is a Chemist's Best Friend!
These are found on the left hand side of the periodic table.
This element, important in organic chemistry, has a higher electronegativity than carbon.
If two atoms in a bond have a very large difference in electronegativity, the bond is said to be ____.
This is the shape of a water molecule.