mercury (Hg) and bromine (Br)
The relationship between elements and periods according to the periodic law is that elements are arranged in periods based on their atomic number and properties. Elements in the same period have the same number of electron shells, while elements in the same group have similar chemical properties.
11 elements exist as gas in ordinary conditions
NOT as 'diamond'. However, diamond is an allotrope of carbon . Carbon is found in the periodic table. as 'C'. NB Diamond, Graphite and Buckminster Fullerene (Footballene) are three allotrop[es of of Carbom . NOT isotopes. An Allotrope is an element that exists in different physical form.
Carbon is the main element that exists as graphite in the periodic table. Graphite is a form of carbon where the atoms are arranged in layers that can slide over each other easily, giving it its lubricating properties.
The noble gases in group 18 of the periodic table do not usually form compounds with other elements. Under very unusual circumstances in the laboratory, chemists have forced many of these elements to actually make compounds but none of the noble gases make compounds under normal conditions.
Liquid
Elements such as iron, carbon, sulfur, and gold exist as solids at ordinary conditions.
I believe that the answer you might be looking for would be Elements, solids, metals, liquids.
No. Pyromanium is not an element. I have never even heard of it. you might want to check if pyromanium even exists.
The relationship between elements and periods according to the periodic law is that elements are arranged in periods based on their atomic number and properties. Elements in the same period have the same number of electron shells, while elements in the same group have similar chemical properties.
11 elements exist as gas in ordinary conditions
HE is a nother writin form of helium.Its a colorless, odorless, tasteless, non-toxic, inert monatomic chemical element that heads the noble gas group in the Periodic Table and whose atomic number is 2. Its boiling and melting points are the lowest among the elements and it exists only as a gas except in extreme conditions.
NOT as 'diamond'. However, diamond is an allotrope of carbon . Carbon is found in the periodic table. as 'C'. NB Diamond, Graphite and Buckminster Fullerene (Footballene) are three allotrop[es of of Carbom . NOT isotopes. An Allotrope is an element that exists in different physical form.
Chlorine is a chemical element that exists as a gas at room temperature and pressure. It is classified as a nonmetal and is a part of the halogen group in the periodic table of elements.
The periodic table of elements is not a real table with every element that exists but a chart with initials and these initials stand for the elements. For instance Al stands for aluminum and Na stands for sodium. Go figure right? :)
Carbon is the main element that exists as graphite in the periodic table. Graphite is a form of carbon where the atoms are arranged in layers that can slide over each other easily, giving it its lubricating properties.
Helium is a chemical element with symbol He and atomic number 2. It is a colourless, odorless, tasteless, non-toxic, inert, mono-atomic gas that heads the noble gas group in the periodic table. Its boiling and melting points are the lowest among the elements and it exists only as a gas except in extreme conditions.