Is hydrogen a non-metal or alkali?

Is hydrogen a non-metal or alkali?

Hydrogen is not an alkali metal itself, but has some similar properties due to its simple one proton (loctated in the nucleus), one electron arrangement. The lone electron exists in a s -orbital around the nucleus.

Is hydrogen a nonmetal or chlorine?

Hydrogen, hydrogen, chlorine, fluorine, carbon, nitrogen, arsenic, phosphorus, selenium are examples of non-metal.

Is hydrogen ever a metal?

Though hydrogen is the very lightest gas known, and though, when uncombined, it has never been condensed to either the liquid or the solid state, some of its properties have led to the conjecture that it is probably a metal.

What groups are the non-metals?

Groups of Nonmetals The nonmetal element group consists of hydrogen, carbon, nitrogen, oxygen, phosphorus, sulfur and selenium. Hydrogen acts as a nonmetal at normal temperatures and pressure and is generally accepted to be part of the nonmetal group. The halogens are nonmetals in group 7 of the periodic table.

Which of these is a nonmetal?

Nonmetals are located on the far right side of the periodic table, except hydrogen, which is located in the top left corner. The 17 nonmetal elements are: hydrogen, helium, carbon, nitrogen, oxygen, fluorine, neon, phosphorus, sulfur, chlorine, argon, selenium, bromine, krypton, iodine, xenon, and radon.

What are non metals?

What elements are nonmetals? The elements that are generally considered other nonmetals include hydrogen, carbon, nitrogen, phosphorus, oxygen, sulfur, and selenium. Nitrogen and phosphorus are included in the subgroup pnictogens. Oxygen, sulfur, and selenium are included in the subgroup chalcogens.

When the hydrogen is metal and nonmetal?

Hydrogen is most often classified as a nonmetal because it has many of the properties of nonmetals. For example, it is a gas at room temperature. However, hydrogen shares properties with the alkali metals in group 1. In liquid form, hydrogen conducts electricity just like a metal does.

Why is hydrogen classified as a non metal?

Hydrogen is classified as a non-metal based on its physical properties. Metals, located to the left of the stairstep elements, have the properties of being shiny, conductive, malleable (can be made into sheets) and ductile (can be made into wire). Since hydrogen has none of these properties it is obviously not a metal.

Does a non-metal react with hydrogen?

The group 7 elements are all reactive non-metals. They react with metals to form metal halides, and with hydrogen to form acidic hydrogen halides . Reactivity decreases down the group. Atoms of group 7 elements all have seven electrons in their outer shell. This means that the halogens all have similar chemical properties.

Is hydrogen a metal, a metalloid, or a non-metal?

Hydrogen is a non metal but shares a group with metals because of its attribute to form cation. Hydrogen is not considered a metal, even though it does exist in Group I (alkali metals) of the periodic table.

Is technetium a nonmetal?

Technetium is a silvery-gray metal that tarnishes slowly in moist air. The common oxidation states of technetium are +7, +5, and +4. Under oxidizing conditions technetium (VII) will exist as the pertechnetate ion, TcO4-. The chemistry of technetium is said to be similar to that of rhenium.