Who used the Law of the Octave to arrange atoms?
John Newlands
Meyer
De Chancourtois
Dobereiner
10 In the mordern form of Mendeleev peroidic table, elements are arranged in __________ horizontal rows.
6
7
8
9
11 According to __________, an orbital can have at the most two electrons of opposite spin.
Aufbau principle
Henry's law
Hund's rule
Exclusion principle
12 ____________ is defined as the energy released or absorbed when an electron is added to the gaseous atom in its ground state.
Electron affinity
Electronegativity
Ionization potential
Hydration energy
1
Expert's answer
2015-04-03T09:48:33-0400
9. John Newlands 10. 7 11. Exclusionprinciple 12. Electronaffinity
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