Question

5

Hydrogen is a pure substance represented by the chemical symbol H. Which of the following best describes hydrogen?
OA. Hydrogen is an element made of two or more kinds of atoms.
OB. Hydrogen is an element made of only one kind of atom.
OC. Hydrogen is a compound made of only one kind of atom.
OD. Hydrogen is a compound made of two or more kinds of atoms.
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Answer 1

Hydrogen is an element made of only one kind of atom.

Step-by-step explanation:

Hydrogen is an element made of only one kind of atom.

In the periodic table, hydrogen is the first element with the symbol H and atomic number 1. It consists of a single proton in its nucleus and one electron orbiting around it.

Unlike compounds, which are made up of two or more different elements, hydrogen is a pure substance and is considered an element.

Learn more about Hydrogen as an element