What are the elements of 11 to 20?
sodium, magnesium, aluminium, silicon, phosphorus, sulfur, chlorine, argon, potassium, calcium. In this lesson you will learn the names and chemical symbols of all chemical elements from atomic number 11 to atomic number 20, which you can see in the table below.
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. The symbol for sodium is "Na". Some mnemonics refer to the symbol "Na" instead of sodium.
If we are talking about the first 30 elements then the periodic table starts with Hydrogen and ends at Zinc that is an element with atomic number 30. These elements can be remembered by this line: Harley Health Like Beautiful Body of Cheetah Name Opposite Falcon Nest.
Metals found in the first twenty elements include lithium, beryllium, sodium, magnesium, aluminum, potassium, and calcium. Non-metals found in the first twenty elements are hydrogen, helium, carbon, nitrogen, oxygen, fluorine, neon, phosphorus, sulphur, chlorine, and argon.
Atomic Number | Symbol | Name |
---|---|---|
11 | Na | Sodium |
12 | Mg | Magnesium |
13 | Al | Aluminum |
14 | Si | Silicon |
The fastest way to memorize tables from 1 to 20 is to write each multiplication table at least twice and learn it by saying each multiple aloud.
Atomic Number | Element | Symbol |
---|---|---|
1 | Hydrogen | H |
2 | Helium | He |
3 | Lithium | Li |
4 | Beryllium | Be |
1 | Hydrogen ( H ) | Sodium ( Na ) |
---|---|---|
4 | Beryllium ( Be ) | Silicon ( Si ) |
5 | Boron ( B ) | Phosphorus ( P ) |
6 | Carbon ( C ) | Sulfur ( S ) |
7 | Nitrogen ( N ) | Chlorine ( Cl ) |
The easiest way to remember the first 20 elements of a periodic table is to memorize the mnemonic sentence - Happy Henry lives beside boron cottage, near our friend Nelly Nancy Mg Allen. Silly Patrick stays close. Arthur Kisses Carrie.
- Happy Henry Lives Beside Boron Cottage, Near Our Friend Nelly Nancy Mg Allen. Silly Patrick Stays Close. Arthur Kisses Carrie.
- Here He Lies Beneath Bed Clothes, Nothing On, Feeling Nervous, Naughty Margret Always Sighs, ” Please Stop Clowning Around ” (18 elements)
What are the 118 elements in order?
Name of the Element | Symbol of the Element | Atomic Number |
---|---|---|
Argon | Ar | 18 |
Potassium | K | 19 |
Calcium | Ca | 20 |
Scandium | Sc | 21 |
- Hydrogen(H)
- Helium(HE)
- Lithium(LI)
- Beryllium(BE)
- Boron(B)
- Carbon(C)
- Nitrogen(N)
- Oxygen(O)

Answer: The first ten elements of the periodic table are hydrogen, helium, lithium, beryllium, boron, carbon, nitrogen, oxygen, fluorine and neon.
Lithium, Beryllium, Sodium, Magnesium, Aluminium, Potassium, and Calcium are the metals found in the first twenty elements. Hydrogen, Helium, Carbon, Nitrogen, Oxygen, Fluorine, Neon, Phosphorous, Sulphur, Chlorine, and Argon are the non-metals found in the first twenty elements.
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