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Why does the atomic radius of an atom decrease as you go across a period?

The atomic radius is often defined as being one half the distance between the two nuclei in a homonucleur diatomic molecule. In general, there is a decrease in atomic radius as you go across a period. This i...
LE
Answered by Louise E. • Chemistry tutor
2167 Views

How is the bonding in NH3 and what does this entail for its electron-domain geometry and molecular geometry?

Nitrogen has atomic number 7; so, when neutral, it has 7 electrons . Those electrons are organized according to the Aufbau principle in an electronic configuration of 1s 2 2s 2 2p 3 . That means there are 5 ...
FT
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What is the VSEPR theory?

(The answer really depends on the level of the student, hence more or less explanation might be needed.)The VSEPR (Valence Shell Electron Pair Repulsion) theory is used within chemistry to predict the geomet...
AK
Answered by Alena K. • Chemistry tutor
3420 Views

Draw a Lewis structure of phosphine, and state the hybridisation of the phosphorus atom.

Draw a diagram of PH 3 Hybridisation: sp 3
BD
3373 Views

What is a dative covalent bond?

In essence, a dative covalent bond is just a covalent bond with an unpaired electron, therefore, shared between two atoms in a delocalised manner. An example of this is Carbon monoxide, which is formed in na...
OH
Answered by Oliver H. • Chemistry tutor
3308 Views