Electron Configurations and Bohr Models | Counting Atoms and Molecules | Key Vocabulary | Families in the Periodic Table | Potpourri |
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2,8,1
The electron configuration for Sodium
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12
How many atoms of Hydrogen in a sugar compound.
C6 H12 O6 |
The number of electrons in the outter shell
Valence
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Alkaline metals
This family is very reactive with water. They have one valence electron and bond with group 17 to make salts.
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Helium. It only has 2 electrons. It's outer shell is filled with 2.
What is the only noble gas that does not follow the octet rule...and why?
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2,8,7
Draw the Bohr model for Chlorine
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10 H2O
Write a chemical formula that show 10 molecules of a compound
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Atoms are happy when their outer shell is filled with 8 electrons
Octet Rule
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Noble gases
These elements have their outer shell filled. They are said to be stable
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Magnesium
What element is in period 2 with 2 valence electrons
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Calcium
What is this element?
2,8,8,2 |
C20H24O3
Steroids consists of carbon hydrogen and oxygen.
There are 3 atoms of oxygen. Hydrogen has 8 times as many atoms as oxygen There are 20 atoms of the last element. What is the molecular formula |
Subscript
The number to the lower right in a Chemical Formula.
This tells you the number of atoms of each element |
Transition metals
This family contains most of our precious metals. They are both ductile and malleable
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Metalloids/Semiconductors
What is the name of the elements that create a ladder between the metals and non-metals
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2,8,8,4
Draw the Bohr Model for Chromium
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l
Black = Calcium
White= Chloride Draw a molecule of CaCl2 |
the instructions for making a chemical compound
A chemical Formula
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Alkaline earth metals
The family has 2 valence electrons. They are reactive but not as reactive as Group 1.
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77
How many neutrons does Xenon have
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They all have 1 electron
Write the electron configurations for Li,Na, K
What relationship do you see? |
12
CH2CH(CH3)N(CH3)2
How many atoms of Hydrogen |
Coefficient
A large number in front of a chemical formula that tells you how many molecules of that compound
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The halogens
These elements get more reactive as you go up the group. This family contains the most reactive element on the Periodic table
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Isotope
An element has the same number of protons and electrons but can be found with 12 neutrons and 13 neutrons. What is the name of the variations of this element
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