Seating Chart and Bell Work

1. Seating Chart and Bell Work Row 3 Charles Coody DeRandom Clark Stephanie Collum Mindy McConnell Kelsey Anderson Row 1 Prince Larry KaydeeMcGlawn Marquis Johnson Alexander Williams Alicia Sodachanh Row 2 Anfernee Beal BrittaneyDemus Shameka Langston Alexis Ingram Zechariah Ray Row 4 William Elverton DeeDra Lawyer Matthew Walker Jeremy White Angela Davis Row 5 ChristuntayHaymon Tre Foster DeOndria Carter Aaron Hicks Empty • What grade do you think you made on your test? • What grade do you think you will have on your report card?

2. Seating Chart and Bell Work Row 3 Tricia Warren DeQuan Mitchell Jonathan Manor Naikesha Knox Empty Row 1 Kristopher Williams Gevarious Nelson Colby Barton Rosatta Bowman Empty Row 2 Marlo Watkins Hayley Douglas Fredrick Vancleave Jonathan Demita Xavier Young Row 4 Kadavious Williams Amina Nolan Joshua Davidson Tyler Hamil Empty Row 5 Antonio Young Haley Rogers Edward Taylor Brandon Harber Empty • What grade do you think you made on your test? • What grade do you think you will have on your report card?

3. Seating Chart and Bell Work Row 3 Dalton Davis LeeAnna Massey Morgan Purvis Empty Empty Row 1 Devin Blackwell Meaghanne Adams Charkilia Jackson Zaria Knight Empty Row 2 Virginia McCurdy DeAndre McNeil Justin Milner Empty Empty Row 4 Stephen Johnson Deolana Bang Ricky Stagg Empty Empty Row 5 Shannon Williams Edwin Watts Heather King Empty Empty • What grade do you think you made on your test? • What grade do you think you will have on your report card?

4. New Rules • Students will not leave the classroom for any reason. Students will be given only 1 emergency leave each 9 weeks.

5. Physical Science – Lecture 31 Introduction to Chemistry

6. What are Atoms? • The atom is a basic unit of matter that consists of a dense, central nucleus surrounded by a cloud of negatively charged electrons.

7. Nucleus • In the middle of an atom is its nucleus. • The nucleus is positive and contains • Protons –positively charged subatomic particle • Neutrons – subatomic particle with no charge

8. Subatomic Particles • Subatomic particle is proton, neutron, or electron. • They are found inside an atom. • Electrons are negatively charged.

9. Where are Electrons? • Electron cloud – space where electrons are likely to be found. • Energy level – most likely location in an electron cloud where an electron will be found.

10. Atom

11. Atom

12. The Periodic Table • Organizational Structure for the elements that lines them up in predictable patterns.

14. Periodic Law • Arranged in order of increasing atomic number • Similar periodic properties • Similar chemical properties

15. Periods

16. Groups

17. What are elements? • An Element is a fundamental substance that has it’s own properties. • Elements make up compounds.

18. Three classes of elements • Metals • Metalloids • Non-metals

19. Metals • Good conductors of heat and electricity • High luster or sheen (reflect light) • Solid at room temperature (except mercury) • Ductile (made into wires) • Malleable (hammered into thin sheets)

20. Non-metals • Upper right hand corner • Greater variation • Most are gases, some are solids, bromine is a liquid • Poor conductors(except carbon) • Brittle

21. Metalloids • Either side of stair step • Metal and non-metal properties • Behave different under different conditions

22. Periodic Table Squares

26. Element Name • A specific name is given to each element on the periodic table. • However, many Periodic Tables do not include element names because scientists are expected to memorize them.

27. Element Symbol • Each element has a specific one or two letter symbol that is used interchangeably with its name.

28. Atomic Number • Atomic number is the number of protons in the nucleus of an atom. • Elements are arranged according to this number.

29. Atomic Mass/ Atomic Weight • The atomic mass (also called atomic weight) of an element is the combined number of protons and neutrons in the nucleus. • The periodic table lists the average atomic mass of all the isotopes.

30. Isotopes • Isotope – atom that has the same number of protons as another atom, but a different number of neutrons. • They are the same element, but have different masses.