NITROGEN

THIS IS THE MODEL

WHAT YOU NEED TO KNOW FIRST

• Atomic # =7
• Mass # = 14
• Protons =7
• Electrons =7

STEPS

• The atomic number is at the top of your box
• The mass is usually at the bottom
• The atomic number,protons, and electrons are all the same number

NEUTRONS

• Neutrons =7
• you subtract the atomic number with the mass

GROUP AND PERIOD

• Group =2
• Period =2
• Your group is going down and up
• Your period is going right to left

VALENCE AND ENERGY LEVEL

• Valence electrons =2
• Energy level =2
• There the same as your group and period

DRAWING PART

• The rings around your nucleus depends on your energy levels
• The little dot/circles are your electrons
• Only 2 electrons are allowed to be on the first ring
• 8 on the next and another 8 on the third ring

NEUTRONS

• Neutrons =7
• To get the Neutrons you subtract the atomic number with the mass

GROUP AND PERIOD

• Group =2
• Period =2
• Your group is going up and down in the table
• Period goes left to right on the table

VALENCE AND ENERGY LEVELS

• Valence electrons =2
• Energy level =2
• These are your group and period

DRAWING PART

• First you draw the nucleus which is the center circle
• The rings that you see depend on the number of energy levels
• The dots/circles are the number of electrons

2 8 8

• There can only be 2 dots on the first ring
• 8 on the second
• 8 on the third and so on and so forth