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jasenka [17]
3 years ago
11

What makes the periodic table arrangement so unique and useful?​

Chemistry
1 answer:
Zepler [3.9K]3 years ago
8 0
Elements are ordered from left to right, increasing atomic number as they go. The periodic table allows us to find out and predict things about elements that haven’t been discovered yet!
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Answer:

?? no entiendo la pregunta?...pero gracias por los puntos free UvU

Explanation:

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What would be the bond order for He 2 2- molecule
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Answer:

In He2 molecule,

Atomic orbitals available for making Molecular Orbitals are 1s from each Helium. And total number of electrons available are 4.

Molecular Orbitals thus formed are:€1s2€*1s2

It means 2 electrons are in bonding molecular orbitals and 2 are in antibonding molecular orbitals .

Bond Order =Electrons in bonding molecular orbitals - electrons in antibonding molecular orbitals /2

Bond Order =Nb-Na/2

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Since the bond order is zero so that He2 molecule does not exist.

Explanation:

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C5H6 reacts with itself to form C10H12 according to the following process
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