Hydrogen
metals
They're called groups
Metalloids are the elements that are found to the right of the zig zag in the periodic table
Hydrogen is the first chemical element in the Periodic Table of Mendeleev.
CI4 * carbon (IV) iodide * carbon iodide * carbon tetraiodide * tetraiodomethane
the horrizantal row in a peridoc table is the scientists that invented that tipe of element eg: es - is einsteinium is the name of the scientist and the real name to that element is Einstein who is verry famous
metals
The rows on the periodic table are called periods.
The periodic table is in order of atomic mass
They're called groups
inert or noble gases
Metalloids are the elements that are found to the right of the zig zag in the periodic table
Hydrogen is the first chemical element in the Periodic Table of Mendeleev.
The first element in the periodic table of Mendeleev is hydrogen, not carbon.
Hydrogen is the first element on periodic table. Its atomic number is 1.
The first element of the Mendeleev's periodic table is hydrogen (H).
False.