X hits on this document

62 views

0 shares

0 downloads

0 comments

8 / 18

  • relative mass =

38

39

Atoms & Molecules - Atoms consist of protons, neutrons and electrons

  • electrons (e)

    • type of charge =

    • relative mass =

    • where found =

40

41

Atoms & Molecules - Atoms consist of protons, neutrons and electrons

  • Electron orbitals can be

  • various shapes

  • electrons orbit nucleus

42

43

Atoms & Molecules - Atoms consist of protons, neutrons and electrons

  • Electron orbitals

  • arrangement of electrons in their orbits

    • is key to chemical behavior of atom

  • will return to this point shortly

Atoms & Molecules - Atoms consist of protons, neutrons and electrons

  • All atoms of a particular element

    • have same unique number of protons

      • known as the element’s

        • atomic number

          • »

            number of protons in atom’s nucleus

          • »

            top number in box for element in periodic table

44

45

Atoms & Molecules - Atoms consist of protons, neutrons and electrons

  • atom’s atomic mass (also called atomic weight or mass number)

  • equal to sum of masses of atom’s protons & neutrons

    • measured in daltons

8

Document info
Document views62
Page views71
Page last viewedTue Dec 06 20:27:17 UTC 2016
Pages18
Paragraphs920
Words3074

Comments