Atomic Mass of First 30 Elements

Calculating Average Atomic Mass Average atomic mass = f1M1 + f2M2 +… + fnMn where f is the fraction representing the natural abundance of the isotope and M is the mass number (weight) of the isotope. The average atomic mass of an element can be found on the periodic table, typically under the elemental symbol.

For any given isotope, the sum of the numbers of protons and neutrons in the nucleus is called the mass number. This is because each proton and each neutron weigh one atomic mass unit (amu). By adding together the number of protons and neutrons and multiplying by 1 amu, you can calculate the mass of the atom.

All Group 11 elements are relatively inert, corrosion-resistant metals. Copper and gold are colored….Characteristics.

Why are the First 18 Elements Special? (1) The electrons fit nicely into three orbitals. Remember that the electrons spin around the nucleus in regions called orbitals. (3) It is a lot easier to remember facts about 18 elements as opposed to over 100 elements.

118 Elements and Their Symbols and Atomic Numbers

How to Memorize More and Faster Than Other People

1. Prepare.
2. Record What You’re Memorizing.
3. Write Everything Down.
4. Section Your Notes.
5. Use the Memory Palace Technique.
6. Apply Repetition to Cumulative Memorization.
7. Teach It to Someone.
8. Listen to the Recordings Continuously.

The first 20 Elements of the Periodic Table: Hydrogen, Helium, Lithium, Beryllium, Boron, Carbon, Nitrogen, Oxygen, Fluorine, Neon, Sodium, Magnesium, Aluminium, Silicon, Phosphorus, Sulphur, Chlorine, Argon, Potassium, Calcium. Mnemonic: “Hi Helen, Listen B.B.C. News On Friday N(e)ight.

Memorization Strategies

1. Break down the table into sections.
2. Spread out the memorization process.
3. Learn the elements in a song.
4. Make nonsense words made from element symbols.
5. Use color to learn element groups.
6. Use a mnemonic device to help remember the order of the elements.