you press escape and go punch your mum in the gut as hard as you can
The periodic table itself will not tell you if an element is a gas or not. All elements have a melting point and a boiling point. For this information you need to look at a table of the PROPERTIES of the elements. However, all the elements in column 18 and many of the elements towards the top of column 17 and to some extent 16 are gasses at room temperature, as are all the elements in row 1.
The periodic table shows the atomic number, symbol, mass number, density of an element. Elements are arranged in periodic table such that their physical and chemical properties follows varies in a systematic way.
The periodic table tells you all the known elements know to us. I dont think there is such a thing as periods.
By number of elctrons,protons in them and their reaction rate
The elements are lined up in order of increasing atomic number (number of protons).
Chlorine and Bromine have similar properties. You can tell because they are in the same vertical column in the periodic table.
They are in the same column.
You can tell by the location, and the fact that they are both in the same column. Elements in the same column (or group) have similar properties.
The periodic table tells you chemical elements. :)
The periodic table itself will not tell you if an element is a gas or not. All elements have a melting point and a boiling point. For this information you need to look at a table of the PROPERTIES of the elements. However, all the elements in column 18 and many of the elements towards the top of column 17 and to some extent 16 are gasses at room temperature, as are all the elements in row 1.
Valance level
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Atomic weight
where tell me then
it tells us that their chemical properties are similar, and in many cases follow a trend.
The rows on the Periodic table are called "periods" and the increasing atomic number across a period represents additions to the electron orbitals, which cause the properties manifested by individual elements (elements of the same group, or column, have similar properties).
A group (also known as a family) is a vertical column in the periodic table of the chemical elements and the group number tells you what group it is in.