Calcium, Potassium, and Helium
at 250C and 101 kPa there are no elements that are liquid in the first twenty elements. the only elements on the periodic table that are liquid are bromine (atomic number: 35) and Mercury (atomic number: 80).
The first twenty elements are made up f different things
check this perodic table at www.calculatoredge.com
Yes, there were elements on the first periodic table. I believe that there are still elements on the periodic table.
Elements in the first row of the rare earth elements of the Periodic Table are called LANTHANIDES.
Conductors in the first twenty elements include; Lithium - Li Beryllium - Be Carbon - C Sodium - Na Magnesium - Mg Silicon - Si Potassium - K Calcium - Ca
Out of the first 18 elements on the periodic table, 10 are solid
the lanthanides
The elements located in the first column, group IA on the periodic table, are called alkali metals.
The first elements in the periodic table are hydrogen, helium, lithium, beryllium, boron.
In the first Periodic Table by Mendeleev, he arranged the elements in the increasing order of their atomic masses and repeating properties.
The first twenty element was discover when there is science in the world