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The noble gasses have a full outer shell of 8 electrons, called on octet (except for helium, which has 2). This is a stable configuration and other elements undergo chemical reactions to approximate it. By contrast the alkali metals have only one outer shell electron which they readily lose in order to go down to the full outer shell below it. The electrons in the lower shells also shield the outer electron from the nucleus, so there is less attraction and the electron is only held loosely. By contrast a noble gas in the same row of a given alkali metal has the same number of electron shells, but the positive charge on its nucleus, so there is a greater force of attraction holding the electrons in place.
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What groups are stable Alkali metals or alkanie metals or earth metals or halogens or noble gases?
Noble gases are most stable due to the presence of octet of electrons
What are 2 simmilarities between noble gases and alkali metals?
If alkali metals loses one electron, they achieve the electronic configuration of the nearest noble gases.
In the same period what have large atomic radii alkali metals or noble gases?
Noble gases have larger atomic radii than alkali metals in the same period.
What are the similarities between the noble gases and alkali metals?
There are no similarities. Noble gases (group 18 elements) have completely filled orbitals with stable electron configuration and are generally unreactive. Alkali metals (group 1 elements) have one valence electron. They are reactive. When these lose one electron, they form ions which has the electronic configuration of the nearest noble gas.
Where are the alkali metals and the halogens located on the periodic table?
Halogens are second from the rightmost column (The Noble Gases) in the periodic table. The Alkali Earth Metals are the second column from the left in the periodic table after the alkali metals.
What groups are stable Alkali metals or alkanie metals or earth metals or halogens or noble gases?
Noble gases are most stable due to the presence of octet of electrons
What are 2 simmilarities between noble gases and alkali metals?
If alkali metals loses one electron, they achieve the electronic configuration of the nearest noble gases.
Are the most stable elements you the periodic table are found in the family of alkali metals?
The most stable elements are found in the Noble Gases, in group 8 or group 0. The most UNstable elements are found in the alkali metals.
In the same period what have large atomic radii alkali metals or noble gases?
Noble gases have larger atomic radii than alkali metals in the same period.
How many electrons away from a noble gas are the alkali metals?
Alkali metals have one electron more than the noble gases.
What is the correct list of elemental families in order going from left to right?
Alkali metals, transition metals, halogens or Transition metals, halogens, noble gases or Alkali earth metals, halogens, noble gases
What are the families in periodic table?
alkali metals, alkali earth, transition metals, non metals, halogens, noble gases
Why do alkali metals have lower ionization energies than the alkali earth metals?
Alkali gases only have 1 electron needing to be removed to reach a stable noble gas configuration. Alkaline earths have two electrons. Alkali metals thus have the lower ionization energy of the two groups.
What are the different types of family of elements?
Examples: alkali metals, alkali earth metals, noble gases, platinum metals, halogens, etc.
What are the similarities between the noble gases and alkali metals?
There are no similarities. Noble gases (group 18 elements) have completely filled orbitals with stable electron configuration and are generally unreactive. Alkali metals (group 1 elements) have one valence electron. They are reactive. When these lose one electron, they form ions which has the electronic configuration of the nearest noble gas.
What are the 5families in the periodic table?
alkali F., alkali earth metals, coinage, halogens and noble gases
What are the two variables that affect atomic size?
Alkali metals and noble gases
