1 / 17

ATOMS

ATOMS . It’s what makes us up!. ATOMS. The smallest particle which an element can be divided and still be the same substance. Atom Size. 1 Penny= 2 x 10^22 Cu and Zn ATOMS That’s (20,000,000,000,000,000,000,000) Thickness of aluminum foil is about 50,000 aluminum atoms stacked up!.

nitza
Download Presentation

ATOMS

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. ATOMS • It’s what makes us up!

  2. ATOMS • The smallest particle which an element can be divided and still be the same substance.

  3. Atom Size • 1 Penny= 2 x 10^22 Cu and Zn ATOMS • That’s (20,000,000,000,000,000,000,000) • Thickness of aluminum foil is about 50,000 aluminum atoms stacked up!

  4. Parts of the ATOM • Protons (+) • Neutrons (0) • Electrons (-) NUCLEUS

  5. Nucleus • ALL Protons (+) are identical. • Mass= 1 amu (atomic mass unit) • ALL Neutrons (0) are identical. • Mass= 1 amu

  6. NUCLEUS • Most of the mass of an atom is found in the nucleus. • 1 amu= 1.7 x 10^ -24 g

  7. PROTONS • Found in the nucleus • Positive charge • Mass= 1 amu • AMU= atomic mass unit- SI unit for measuring mass of atomic particles)

  8. Atomic Number • Atomic Number= # of protons in an atom • ALL atoms of an element have the same number of protons!

  9. Neutrons • Found in the nucleus • Neutral= no charge • Mass= 1 amu (atomic mass unit)

  10. MASS NUMBER • Mass Number= protons + neutrons

  11. ELECTRONS (-) • Found in Electrons Cloud Outside the nucleus. • In an atom: • # of protons = # of electrons • The atom has no charge! • Mass of an electron= almost 0 (We will call it zero)

  12. ELECTRONS (-) • Comparing the masses • 1,800 electrons = 1 proton

  13. Model of Atom

  14. IONS • Charge particles • Positive ion • Protons (+) > Electrons (-) • Negative ions • Electrons(-) > Protons (+)

  15. ISOTOPES • Atoms that have a different # of neutrons than protons. • The number of protons do not change!

  16. ISOTOPES

  17. Name that Isotope! • Write the name of the element! • Follow that with a hyphen. • And the mass of the isotope!

More Related