Question

is hydrogen is present in atmosphere....???....if so give reason

Answer 1

each and every gases present in our atmosphere whether it is noble gas or it is a highly reactive gas

Answer 2

how hydrogen is found,, Henry Cavendish was the first to understand that hydrogen was a unique substance. In 1776 he produced hydrogen by mixing mercury with an acid. Hydrogen had actually been produced much earlier by the Swiss alchemist Paracelsus. He also added mixes of water samples in it to make water!
Hydrogen in its atomic form is found commonly in space and stars. There are vast clouds of hydrogen in outer space. However much of the hydrogen in space is missing an electron, which means it is an ion. On Earth, hydrogen is commonly found as part of water molecules. Many other molecules also contain hydrogen. Some bacteria produce pure hydrogen gas as waste.
Name: Hydrogen

Symbol: H

Atomic Number: 1

Atomic Mass: 1.00794 amu

Melting Point: -259.14 °C (14.009985 K, -434.45203 °F)

Boiling Point: -252.87 °C (20.280005 K, -423.166 °F)

Number of Protons/Electrons: 1

Number of Neutrons: 0

Classification: Non-metal

Color: colorless


then..wait a minute giving all ans