Basic Periodic Table

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Basic Periodic Table
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Atomic Number

• The atomic number is always the smaller number on
  the elements box.
• The atomic number always equals the number of
  protons or electrons.
• For the element to the right, what would the
  atomic number be?

3
Symbol

• The symbol in an elements box is always a letter
  or two
• The symbol will either have one capital letter,
  or one capital letter and one lowercase letter
• Which is the symbol here? ?

4
Name

• In an elements box, there will always be a name
• The name is always what the element is called
• Whats the name here? ?

5
Mass Number

• The mass number equals the number of protons plus
  neutrons
• The mass number is the bottom number of an
  elements box, and will always be the bigger
  number
• Whats the mass number here? ?

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Calculating Protons, Neutrons, and Electrons

• The atomic number is the number of protons in an
  atom of an element
• To find the number of electrons in an element,
  you just look at the protons. The number of
  protons and electrons will always be the same or
  congruent
• Congruent means equal!
• To find the number of neutrons in an element, you
  subtract the atomic number from the mass number.
  If the mass number or the atomic number is a
  decimal, you will round to the nearest whole
  number

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Example

• 8, is the atomic number and 16 is the mass number
• The number of protons and electrons would be 8
• The mass number would be 8 too, because if you
  subtract 8 from 16 you still get 8!

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Quiz!

• 1.The atomic number equals
• A protons and electrons
• B protons and neutrons
• C blue and yellow
• 2.The mass number equals
• A protons and electrons
• B protons and neutrons
• C cats and dogs
• 3.To find the number of neutrons you..
• A add monkeys and bananas
• B subtract the atomic number from the mass
  number
• C add the atomic number to the mass number
• 4.The symbol is..
• A is the elements name
• B the atomic number
• C is the letter or two in an atom, and the first
  letter is always the capital letter if there are
  two letters
• 5.The elements name is..
• A is the symbol
• B is the atomic number

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The End