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- Hydrogen
- Helium
- Lithium
- Beryllium
- Boron
- Carbon
- Nitrogen
- Oxygen
- Fluorine
- Neon
- Sodium
- Magnesium
- Aluminum
- Silicon
- Phosphorous
- Sulphur
- Chlorine
- Argon
- Potassium
- Calcium
Hope this helped :)
Pansy O'Hara
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When Mendeleev developed the first periodic table there were approximately how many elements known?
By 1869, a total of 63 elements had been discovered.
What does 5Ca mean in the periodic table of elements?
5Ca is not a valid notation in the periodic table. The element symbol for Calcium is Ca. It has an atomic number of 20, meaning it has 20 protons in its nucleus.
Total no of elements known to man?
There are currently 118 known elements in the periodic table.
What is number 20 on the periodic table?
Calcium is number 20 on the periodic table. Its symbol is Ca.
How many electrons does calcium have in the periodic table?
Calcium has 20 electrons in the periodic table.
What are the first 20 elements of the periodic table along with their mass number?
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What is the arrangement of the first 20 elements in the periodic table?
The first 20 elements in the periodic table are: Hydrogen Helium Lithium Beryllium Boron Carbon Nitrogen Oxygen Fluorine Neon Sodium Magnesium Aluminum Silicon Phosphorus Sulfur Chlorine Argon Potassium Calcium
How many elements are arranged on the periodic table?
There are 118 elements arranged on the periodic table.
Is calcium an elemnt?
Yes, it has the atomic # of 20 on the periodic table of elements.
What month was the periodic table created in?
August 20, 1864 was when John Alexander Reina Newlands produced the first periodic table of the elements.
Which metal in the first 20 elements is most reactive?
The First 20 Elements in the Periodic Table are;1. Hydrogen2. Helium3. Lithium4. Beryllium5. Boron6. Carbon7. Nitrogen8. Oxygen9. Fluorine10. Neon11. Sodium12. Magnesium13. Aluminium14. Silicon15. Phosphorus16. Sulphur17. Chlorine18. Argon19. Potassium20. Calcium
What are the 1st 20 elements of the periodic table made of?
The first 20 elements of the periodic table are made up of a variety of elements including hydrogen, helium, lithium, beryllium, boron, carbon, nitrogen, oxygen, fluorine, neon, sodium, magnesium, aluminum, silicon, phosphorus, sulfur, chlorine, argon, potassium, and calcium.
What are the elements that are conductor from the first 20 elements of the periodic table?
Conductors in the first twenty elements include; Lithium - Li Beryllium - Be Carbon - C Sodium - Na Magnesium - Mg Silicon - Si Potassium - K Calcium - Ca
When Mendeleev developed the first periodic table there were approximately how many elements known?
By 1869, a total of 63 elements had been discovered.
Are 3-12 elements on the periodic table of elements representative elements?
No, 3-12 elements on the periodic table (group 3 to group 12) are transition metals, not representative elements. Representative elements are found in groups 1 and 2, and 13 to 18 on the periodic table.
What does 5Ca mean in the periodic table of elements?
5Ca is not a valid notation in the periodic table. The element symbol for Calcium is Ca. It has an atomic number of 20, meaning it has 20 protons in its nucleus.
Total no of elements known to man?
There are currently 118 known elements in the periodic table.
