Periodic table help please!?

Question

Please give me the group of hydrogen. I am writing a book so I need to classify it correctly.

Answer 1

it is an old argument where 2 place hydrogen but many authors like j.d.lee say tht hydrogen is unique and has a group of its own since it doesnot fit in very well into the framework of group classification.

Answer 2

there's a lot of debate about how to classify hydrogen.

It's officially in group 1 on most periodic tables (group 1 is labeled alkali metals. however, hydrogen is not an alkali metal).

it does have 1 unpaired electron (like other group 1 elements)

it does have the properties of non metals. such as carbon nitrogen oxygen, etc

it also behaves as a halogen (salt former). such as in CaH2

look here for ref..

http://www.chemicalelements.com/

Answer 3

Hydrogen (IPA: /ˈhaɪdrə(ʊ)dʒən/), is a chemical element represented by the symbol H and an atomic number of 1. At standard temperature and pressure it is a colorless, odorless, nonmetallic, tasteless, highly flammable diatomic gas (H2). With an atomic mass of 1.00794 g/mol, hydrogen is the lightest element.

Hydrogen is the most abundant of the chemical elements, constituting roughly 75% of the universe's elemental mass.[1] Stars in the main sequence are mainly composed of hydrogen in its plasma state. Elemental hydrogen is relatively rare on Earth, and is industrially produced from hydrocarbons such as methane, after which most elemental hydrogen is used "captively" (meaning locally at the production site), with the largest markets about equally divided between fossil fuel upgrading (e.g., hydrocracking) and in ammonia production (mostly for the fertilizer market). Hydrogen may be produced from water using the process of electrolysis, but this process is presently significantly more expensive commercially than hydrogen production from natural gas.

The most common naturally occurring isotope of hydrogen, known as protium, has a single proton and no neutrons. In ionic compounds it can take on either a positive charge (becoming a cation composed of a bare proton) or a negative charge (becoming an anion known as a hydride). Hydrogen can form compounds with most elements and is present in water and most organic compounds. It plays a particularly important role in acid-base chemistry, in which many reactions involve the exchange of protons between soluble molecules. As the only neutral atom for which the Schrödinger equation can be solved analytically, study of the energetics and bonding of the hydrogen atom has played a key role in the development of quantum mechanics.

Answer 4

hydrogen is placed,by convention at the head of group 1 yet its position is highly controversial and extensively debated.
hydrogen can behave like an alkali metal of group 1 or a halogen of group 17.
for example
as an alkali metal
H2+Cl2---->2HCl
hydrogen is univalent and positive as all alkali metals are.
as a halogen
Ca+H2---->CaH2
like all halogens here hydrogen is negatively charged and univalent.

Answer 5

Hydrogen is the first element with atomic no. 1 and they contain many metals,non-metalsand radioactive elements.Periodic table now we are seeing is modern periodic table in which elements are arranged by atomic nos.

Answer 6

1.

Answer 7

Keep it in first group because it's configuration is 1S1.It belongs to S block elements.

Answer 8

the group is 1A

see the link

Answer 9

ts in the first group

Answer 10

usually you find it in group 1, even though it's not a metal.

http://www.webelements.com/webelements/elements/text/H/key.html