Why is h2o hydrogen Dioxide instead of di hydrogen oxide?
Dec 28, 2024 · H2oThe symbol for hydrogen oxide is HO2H2O Because Hydrogen Oxide can be water.The most common meaning of Hydrogen oxide is Water which has formula H2O.
Why can hydrogen be placed in either group 1 or 7 on the ... - Answers
Jun 4, 2024 · Hydrogen is included in the periodic table. It is the first element on the table and has an atomic number of 1. It is placed in Group 1 and Period 1 of the periodic table.
Is hydrogen a compound - Answers
Jun 8, 2024 · No. Hydrogen is not a compound.Related Information:A compound molecule consists of two or more differentelements.An elemental hydrogen molecule is diatomic, composed of two atoms …
Why is oxygen considered an element? - Answers
Feb 7, 2025 · Is o2 an element or a compound? O2 is a molecule made up of two oxygen atoms. Oxygen itself is an element, but when it combines with another oxygen atom to form O2, it is …
Is a hydrogen an element compound or mixture? - Answers
Hydrogen is an element, as it is a pure substance made of only one type of atom. It is the simplest and most abundant element in the universe. Chloroform is a compound, not an element or a mixture.
Which atom is the smallest in size? - Answers
Feb 7, 2025 · The size of an atom is mainly determined by the number of protons in its nucleus. Since hydrogen has the fewest protons among all elements, it is the smallest atom.
What does sulfur and hydrogen combined make? - Answers
Jun 2, 2024 · What does 1 sulfur and 2 hydrogen element make? 1 sulfur atom and 2 hydrogen atoms combine to form hydrogen sulfide gas, with the chemical formula H2S.
Why is hydrogen considered to have the simplest atomic structure?
May 22, 2024 · The element with an atomic mass number of one is hydrogen. Hydrogen is the lightest and simplest element in the periodic table, with a single proton in its nucleus.
What are the most abundant elements in the ocean? - Answers
Jan 9, 2025 · Hydrogen and oxygen forming water molecules make up most of the ocean. In the Earth's crust, the five most abundant elements by weight are oxygen, silicon, aluminum, iron, and calcium.
Is H2 an element or compound? - Answers
May 23, 2024 · Is hydrogen a molecule and or compound or element? Hydrogen is an element because it is made up of only one type of atom, which is hydrogen itself.