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N76 [4]
3 years ago
15

How do you calculate the number of valence electrons in an atom?

Chemistry
1 answer:
Masja [62]3 years ago
5 0
By calculating it's number of GROUP........
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C. Groups 13-16 contain metalloids.

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Draw one representation that shows the intermolecular interactions between NH_3 and water and another that shows the intermolecu
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NH3 has greater water solubility due to intermoleculate interactions

Explanation:

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If we represent the structures of NH3 and SbH3 we can see that they are similar to the naked eye, this is because N and Sb belong to the same group of the periodic table (group 15).

However, the electronegativity of N is greater than that of Sb. The NH3 molecule is polar and can form an intermolecular interaction called hydrogen bridge with water.

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C po

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What are all synthetic materials made from?
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Which two terms relate and why? Compound, ion, proton
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ion, proton

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Ions and protons have profound relationships.

An ion is an atom that has lost or gained electrons.

A proton is a positively charged subatomic particle.

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  • Electrons are the negatively charged particles orbiting round an atom.
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Atoms are electrically neutral and this implies that they have equal number of protons and electrons.

In an ion, the number of protons and electrons differ.

For positive charged ions, the number of protons is more suggesting they have lost electrons.

For negatively charged ions. the number of protons is less suggesting they must have added electrons.

Compound are combinations of different atoms.

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