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Choose an element and extract information about that element from the periodic table (for example: the...

Choose an element and extract information about that element from the periodic table (for example: the symbol, atomic number, atomic mass, and the number of protons and electrons). Explain how you did it.

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Answer #1

The element is Hydrogen. Hydrogen is selcted as it first element in periodic table.

The atomic symbol is H and the molecular symbol is . One molecule of hydrogen contains 2 atoms of hydrogen

The atomic number is 1 and the mass number is 1. The atomic mass is 1.008 amu or 1.008 g/mol. These data are given in the periodic table. In the symbol the subscript 1 represents atomic number and superscript 1.008 represents atomic mass.

The number of electrons is equal to the atomic number. It is equal to 1.

The number of protons is equal to the atomic number. It is equal to 1.

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