The Periodic Table John Newlands – 1864 – law of octaves.
-
date post
20-Dec-2015 -
Category
Documents
-
view
242 -
download
0
Transcript of The Periodic Table John Newlands – 1864 – law of octaves.
![Page 1: The Periodic Table John Newlands – 1864 – law of octaves.](https://reader033.fdocuments.in/reader033/viewer/2022061603/56649d4e5503460f94a2e550/html5/thumbnails/1.jpg)
![Page 2: The Periodic Table John Newlands – 1864 – law of octaves.](https://reader033.fdocuments.in/reader033/viewer/2022061603/56649d4e5503460f94a2e550/html5/thumbnails/2.jpg)
The Periodic Table
![Page 3: The Periodic Table John Newlands – 1864 – law of octaves.](https://reader033.fdocuments.in/reader033/viewer/2022061603/56649d4e5503460f94a2e550/html5/thumbnails/3.jpg)
The Periodic Table
• John Newlands – 1864 – law of octaves
![Page 4: The Periodic Table John Newlands – 1864 – law of octaves.](https://reader033.fdocuments.in/reader033/viewer/2022061603/56649d4e5503460f94a2e550/html5/thumbnails/4.jpg)
The Periodic Table
• John Newlands – 1864 – law of octaves
• Dmitri Mendeleeve – first periodic table predicted missing Atoms
![Page 5: The Periodic Table John Newlands – 1864 – law of octaves.](https://reader033.fdocuments.in/reader033/viewer/2022061603/56649d4e5503460f94a2e550/html5/thumbnails/5.jpg)
![Page 6: The Periodic Table John Newlands – 1864 – law of octaves.](https://reader033.fdocuments.in/reader033/viewer/2022061603/56649d4e5503460f94a2e550/html5/thumbnails/6.jpg)
The Periodic Table
![Page 7: The Periodic Table John Newlands – 1864 – law of octaves.](https://reader033.fdocuments.in/reader033/viewer/2022061603/56649d4e5503460f94a2e550/html5/thumbnails/7.jpg)
The Periodic TableArranged according to electronic configuration and
by increasing atomic number.
![Page 8: The Periodic Table John Newlands – 1864 – law of octaves.](https://reader033.fdocuments.in/reader033/viewer/2022061603/56649d4e5503460f94a2e550/html5/thumbnails/8.jpg)
The Periodic Table
![Page 9: The Periodic Table John Newlands – 1864 – law of octaves.](https://reader033.fdocuments.in/reader033/viewer/2022061603/56649d4e5503460f94a2e550/html5/thumbnails/9.jpg)
Representations in chemical equations
Metals – represented in their empirical formula Fe, Cu…..
Non Metals – no set rule – based on most common form C, P4
If diatomic
(H2, N2, O2, F2, Cl2, Br2, I2)
Sulfer - is S8 but usually used as SMetaloids – like metals use empirical
formula B, Si, Ge
![Page 10: The Periodic Table John Newlands – 1864 – law of octaves.](https://reader033.fdocuments.in/reader033/viewer/2022061603/56649d4e5503460f94a2e550/html5/thumbnails/10.jpg)
Removal of Electrons
• Mn2+ has config of [Ar] 3d5
NOT [Ar] 4s23d3
• Electron filling does not predict the order of electron removal in transition metals
![Page 11: The Periodic Table John Newlands – 1864 – law of octaves.](https://reader033.fdocuments.in/reader033/viewer/2022061603/56649d4e5503460f94a2e550/html5/thumbnails/11.jpg)
Atomic Radius
Size of atom – the volume that encompasses 90 % of the electron density.
Atomic Radius – one half the distance between the two nuclei in two adjacent atoms.
Determined by x-ray diffraction.