How To Know The Chemical Formula Of A Compound The Ten Commandments of Chemistry

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The Ten Commandments of Chemistry

Attention chemistry students! If your chemistry class eats your lunch, you need to study, learn and memorize the “10 Laws of Chemistry”.

Chemistry 10 Instructions

#1 You will miss these two basic concepts.

You need to remember two very simple concepts:

  • opposites attract and likes repel
  • nature tends to the least powerful (the easy way)

#2 You will know the Periodic Table.

You don’t need to memorize the periodic table to use it. But, you have to be very familiar with its structure. You should know what the periods and groups (families) mean. You should know how the periodic table is designed to represent quantum mechanics and electron configuration. Take some time and learn the periodic table.

#3 You will know polyatomic ions.

If you want to be able to name compounds, write formulas and solve chemical equations you need to know and understand polyatomic ions. One of the best ways to study polyatomic ions is with flash cards.

#4 You will be able to write the electron configuration.

Even if you haven’t learned how to use quantum numbers, you should learn how to write electron coordinates. Understanding electron configuration helps with Lewis dot symbols, valence electrons and chemical bonding.

#5 You will know how to draw Lewis dot symbols.

Learn how to draw Lewis dot symbols to help understand valence electrons and chemical bonding.

#6 You will know the octet rule.

If you want to understand how chemical bonding works know the octet rule. The tendency of an atom is to lose or gain electrons to obtain a Noble gas valence.

#7 You will know oxidation numbers.

The oxidation number of an atom is its potential charge. If an atom gains an electron then it will have a negative charge, but if it loses an electron it will have a positive charge. Knowing the oxidation number of an element can be very helpful in determining how elements combine to form compounds.

#8 You will know quantum numbers.

You don’t have to understand how quantum numbers are developed or learn the math behind them. But, you need to understand energy levels, sublevels and orbitals to be able to write electron configurations with Lewis dot symbols.

#9 You will be able to write chemical formulas.

You need to learn how to write chemical formulas in order to write chemical equations properly.

#10 You will practice, practice and practice.

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