1. How to read the Periodic Table:
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How to read the Periodic Table:
Atomic Number
B Atomic Symbol
Atomic Mass
Boron
name
This is the number of protons = 5
This is also the number of electrons = 5
(only for neutral atoms)
- Atomic Number = = 6 neutrons
NAME: _B,_ Boron ______
Atomic Number: 5
Atomic Mass:
protons: __5___
neutrons: __6___
electrons: __5___
round off to 11
Draw only up to 8 electrons in the
second orbital. 3 in this case = 5 total
Draw only up to 2 electrons in the
first orbital.
Draw 6 neutrons as solid circles
Draw 5 protons as hollow circles

2. The outermost orbital is called the valence
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The outermost orbital is called the valence
Up to 18
Up to 8
Only 2
Atoms touch each other at the valence and make
chemical bonds.

3. Draw this map showing the points where each electron
Goes into the orbitals. 11 3 7 1 5 6 9 10 13 2 12 4 8