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Hydrogen is a non-metal. Hydrogen is a colorless, odorless, and tasteless gas that is the most abundant element in the known universe. It is the lightest and simplest having only one proton and one electron.
Although hydrogen has an ns1 electron configuration just like alkali metals, it is still not metal because it varies greatly from the alkali metals as it forms cations (H+) more reluctantly than other alkali metals.
Because hydrogen is a nonmetal and forms H–(hydride anions), it is placed above the halogens in the Periodic Table.
Hydrogen also forms H2dihydrogen like halogens.
However, hydrogen is very different from halogens. Hydrogen has a much smaller electron affinity than halogens.
What else can I help you with?
True or false that hydrogen is the least common element in the universe?
False. Hydrogen is the most abundant element in the universe, constituting about 75% of its elemental mass.
True or false a compound that contains hydrogen atoms will be an acid when dissolved in water?
False. In order for a compound to be acidic, it must have contain hydrogen atoms that are ionized in aqueous solution. Not all hydrogen atoms in compounds behave this way. For instance, the organic compound methane contains hydrogen but is not an acid. Ammonia also contains hydrogen, but it typically acts as a base, not an acid.
When an acid reacts with metal the liquid changes colour to green?
There may be a misunderstanding. When an acid reacts with a metal, the metal usually undergoes a displacement reaction to form a salt and hydrogen gas. The color change to green may be due to impurities in either the acid or the metal, but it is not a typical result of the reaction between an acid and a metal.
The coordination number of a transition metal ion is always equal to the number of ligands the metal is capable of bonding with. True or False?
False. The coordination number of a transition metal ion is the total number of bonds formed between the metal ion and the ligands. It is not necessarily equal to the number of ligands the metal is capable of bonding with.
Is the sun made mostly of hydrogen and helium true or false?
True. The Sun is mainly composed of hydrogen (about 74% of its mass) and helium (about 24% of its mass). The remaining 2% consists of trace amounts of heavier elements.
What metals can bond with hydrogen?
Metals such as iron, nickel, platinum, and palladium can form bonds with hydrogen to create metal hydrides. These metal hydrides are often used in various industrial processes, including hydrogen storage and purification.
State true or false Hydrogen is insoluble in water?
False False False FalseFalse
Reduction is the gain of oxygen by a metal true or false?
False
Water H2O is composed of hydrogen and oxygen true or false?
True
Is the properties of a metal are related to bonds true or false?
true.
True or false Tritium is an isotope of hydrogen with 2 neutron?
False. Tritium is an isotope of hydrogen with 2 neutrons.
True or false that hydrogen is the least common element in the universe?
False. Hydrogen is the most abundant element in the universe, constituting about 75% of its elemental mass.
Are negative numbers considered true or false in c?
zero= false, non-zero=true
Roasting is a proces in which metal sulfides are converted to metals true or false?
True
Illinois is considered a prairie state true or false?
true
Is it true or false that pharaohs were no longer considered gods after death?
False.
Is an individual's time is not considered an economic resource true or false?
False
