How do you explain hydrogen?

a colorless, odorless, flammable gas that combines chemically with oxygen to form water: the lightest of the known elements. Symbol: H; atomic weight: 1.00797; atomic number: 1; density: 0.0899 grams/liter at 0°C and 760 millimeters pressure.

What is the importance of hydrogen?

Hydrogen is the first element of the periodic table. The most important function of hydrogen in the human body is to keep you hydrated. Water is made up of hydrogen and oxygen and is absorbed by the cells of the body.

What are properties of hydrogen?

Hydrogen is a colorless, odorless, tasteless, and nonpoisonous gas under normal conditions on Earth. It typically exists as a diatomic molecule, meaning each molecule has two atoms of hydrogen; this is why pure hydrogen is commonly expressed as “H2“.

Who named hydrogen?

The name derives from the Greek hydro for “water” and genes for “forming” because it burned in air to form water. Hydrogen was discovered by the English physicist Henry Cavendish in 1766. Scientists had been producing hydrogen for years before it was recognized as an element.

Is hydrogen a hazardous?

Hydrogen used in the fuel cells is a very flammable gas and can cause fires and explosions if it is not handled properly.

What is the color of hydrogen?

colorless
Although hydrogen is actually a colorless gas, it is commonly referred to by a color to denote how clean it is: black, gray and brown being least clean, a cleaner blue and a true zero-emission green hydrogen. Roughly 95\% of hydrogen is fossil-based.

How can students clear their doubts about the topic hydrogen?

They can clear their doubts about the topic, Hydrogen, before going for the final examination. It can be achieved by referring to the revision notes at least more than once. While going through this revision notes, students will remember the importance of the subject and also from the examination point of view.

How to study hydrogen in Class 11?

Class 11, chapter 9, deals with the topic of Hydrogen is basically structured in a manner to help the students to know everything about the element in full detail. By studying the Hydrogen chapter, students will know about its isotopes, properties, reactions, the position of hydrogen in the periodic table, and the other important topics.

How many protons and electrons are there in hydrogen?

In atomic form it consists of only one proton and one electron. In elemental form it exists as a diatomic (H2) molecule and is called dihydrogen. Download Hydrogen short notes pdf file. 1.

What are the physical properties of hydrogen?

1 Hydrogen is colorless, tasteless, and odorless 2 It has a vapor density of 1, which is lighter than air 3 It is also non – poisonous 4 The solubility of the compound in H2O is very low