Introduction to the Periodic Table

Introduction to the Periodic Table

Introduction to the Periodic Table Atomic Number Symbol Atomic Weight Element Compound Mixture I am Dmitri Mendeleev! I made the PERIODIC TABLE !

What is the PERIODIC TABLE? o Shows all known elements in the universe.

o Organizes the elements by chemical properties. How do you read the

PERIODIC TABLE? What is the ATOMIC NUMBER? o o The number of

protons found in the nucleus of an atom Or The number of electrons surrounding the nucleus of an atom.

What is the SYMBOL? o An abbreviation of the element name.

What is the ATOMIC WEIGHT? o The number of protons and neutrons in the nucleus of an atom.

How do I find the number of protons, electrons, and neutrons in an element using the periodic table? o # of PROTONS = ATOMIC NUMBER

o # of ELECTRONS = ATOMIC NUMBER o # of NEUTRONS = ATOMIC _ ATOMIC

WEIGHT NUMBER Now you are almost as smart as I am! But not as handsome! Man, I look GOOD!

Elements, Compounds, and Mixtures What is an ELEMENT? o A substance

composed of a single kind of atom. o Cannot be broken down into another

substance by chemical or physical means. What is a COMPOUND? o A substance in

which two or more different elements are CHEMICALLY bonded together. What is a MIXTURE?

o Two or more substances that are mixed together but are NOT chemically

bonded. Element, Compound or Mixture? Element, Compound or Mixture?

Element, Compound or Mixture? Element, Compound or Mixture? Element, Compound or Mixture?

Element, Compound or Mixture? You are still not as handsome as the great Mendeleev!

I am working this beard! Man, I look GOOD!

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