The Periodic Table This Section will focus on Scientists who have had an impact on the study of the Periodic Table.

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Presentation transcript:

The Periodic Table This Section will focus on Scientists who have had an impact on the study of the Periodic Table.

Demitri Mendeleev Demitri Mendeleev was a Russian scientist. He was the first person to make the periodic table. He also wrote a chemistry book.The periodic table is a tool to help read elements.

Mendeleev’s Table

Modern Periodic Table

How to Read the Table 6 2 C 4 carbon Atomic Mass Number of Electrons in each energy field Atomic Number Chemical Symbol Element Name

Calculating Atomic Mass 6 C Carbon To find the Atomic Mass, you look at the bottom number in the Atom tile and round it to the nearest whole number. Atomic Mass

How to find number of protons 6 C CARBON The number of Protons in atom is also the Atomic number, so therefore the Atomic number also represents the amount of Protons in the nucleus of that Atom. Atomic Number/ number of Protons

How to Find the Amount of Neutrons in an Atom To find the amount of neutrons in an atom you have to subtract the atomic mass from the atomic number. 16 S sulfur Atomic Mass 32 Atomic Number 16 Number of protons

To determine amount of electrons 6 C CARBON To find the number of electrons in an atom, look at the numbers in the right side. To determine the number of energy levels count the number of side numbers and there you go!!!

33 AS ARSENIC How to tell what period the element is listed ENERGY LEVELS APPEARS IN THE 4TH PERIOD

What's the BIG difference The big difference between an element, compound, and a molecule is…… 1 Element: a substance made up of only 1 kind of atom 2 DIFFERENT Compound: a substance made up of 2 or more DIFFERENT elements 2 more Molecule: a grouping of 2 or more atoms joined together

For instance... This is an atom of an element. As you can see, it is made up of only one kind of atom.. In this case Hydrogen H

Now, with a compound H O O When two or more atoms are put together it makes a compound.

How elements are formed Elementsare formed with a nucleus, and inside the nucleus is protons and neutrons. Around the nucleus are energy fields, and inside the energy fields are are electrons. Elements are formed with a nucleus, and inside the nucleus is protons and neutrons. Around the nucleus are energy fields, and inside the energy fields are are electrons. Sulfur

Vocabulary Electron Neutron Proton Nucleus Compound Atom Isotope element Electron fields Mass Atomic structure Periodic table Chemical symbol

Suggested Vocabulary Element name chemist properties matter electron cloud synthetic metal metalloid Solid liquid gas noble gasses subatomic Nonmetals particles

Check out some of these helpful websites to do some research of your own... A periodic table of Elements Periodic Table Adventure Science Education at Jefferson LabScience Education at Jefferson Lab

Contributor's Jessica Osorio Rebekah Flores Morgan Chacon Karly Perez Julian RojasNick Waldovogel Tony Rinaldi Lennis Montoya Josh Quezada Josh Olea Jackie Cakmak