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In a word 'NONE'.
They are all highly reactive, and will immediately react with the moisture/water content in your mouth. This will produce an alkali, which will immediately alter the pH of your mouth. Oral pH is 6.3 to 7.6 .; Alkalis will raise this above 7.6 .
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WHY did Mendeleev arrange the elements in periods?
he put them in groups to show acids from alkali's and gasses from metals
Can Hydrogen make bond with alkali metals?
No, hydrogen is a nonmetal. It is grouped with the alkali metals because it has a similar outer shell electron configuration as they do. Hydrogen is something of an oddball among elements. It is rather unique, but share some characteristics with both the halogens and the alkali metals. When the periodic table is divided into groups (noble gasses, halogens, alkali metals, etc.) hydrogen is usually put in its own group.
Why is hydrogen placed in the same group a alkali metals?
Although hydrogen is written above the alkali metals on the periodic table, it is not an alkali metal. It is only placed in that location because it has 1 electron in its outermost s orbital, like the alkali metals. Some tables put hydrogen all by itself above the rest of the table in the middle, with lines running from it diagonally down to both lithium and fluorine, to indicate its ability to either accept or donate a single electron to achieve a filled outer shell. However, it doesn't really belong with the alkali metals or with the halogens.
Why do alkali metals have lower ionization potentials than alkaline earth metals?
Noble gases have the highest ionization energies of the elements because they don't "want" to lose any electrons. All atoms strive to have a full outer shell like the noble gases and once they reach their equilibrium, it takes a lot of energy to rip off another electron. Alkali metals, by comparison, have a large atomic radius in their period --> low electronegativity --> low ionization energy. Alkali metals have relatively large atomic radii, which means the nucleus is farther away from the electrons than in an atom with a small atomic radius. Because the electrons are far away, it is easier to rip an electron. If it is easy to take away an electron from an atom, then it has a low ionization energy. Alkali metals have lower first ionization energy than noble gases.
How do you safely smell chemical fumes?
put your face in it.
Is hydrogen in the alkaili metals metals?
No. Hydrogen is a nonmetal. It is only put in the alkali metal column because it has a similar electron configuration.
What type of fire can be put out safely with?
The large majority of fires can be put out safely with water. The exceptions are electrical, grease, or some super heated metals.
WHY did Mendeleev arrange the elements in periods?
he put them in groups to show acids from alkali's and gasses from metals
Can Hydrogen make bond with alkali metals?
No, hydrogen is a nonmetal. It is grouped with the alkali metals because it has a similar outer shell electron configuration as they do. Hydrogen is something of an oddball among elements. It is rather unique, but share some characteristics with both the halogens and the alkali metals. When the periodic table is divided into groups (noble gasses, halogens, alkali metals, etc.) hydrogen is usually put in its own group.
What type of water can be put out safely with water?
The large majority of fires can be put out safely with water. The exceptions are electrical, grease, or some super heated metals.
What type of fires can be put out safely with water?
The large majority of fires can be put out safely with water. The exceptions are electrical, grease, or some super heated metals.
Why is hydrogen placed in the same group a alkali metals?
Although hydrogen is written above the alkali metals on the periodic table, it is not an alkali metal. It is only placed in that location because it has 1 electron in its outermost s orbital, like the alkali metals. Some tables put hydrogen all by itself above the rest of the table in the middle, with lines running from it diagonally down to both lithium and fluorine, to indicate its ability to either accept or donate a single electron to achieve a filled outer shell. However, it doesn't really belong with the alkali metals or with the halogens.
Does chlorine combust when you put it in water?
No, that is a property normally associated with the alkali metals. Chlorine only reacts with water to a small degree.
How do you use the periodic table to recall the ionic charge of an alkali metal or an alkaline earth metal or aluminum?
Just look at the number of the family it is in, like alkali metals have a 1, alkaline earth metals have a 2, and aluminum has a 3. Then just put a plus sign in front of it and you have the charge of the ion.
What will replace hydrogen when put in water?
The alkali metals release hydrogen when in contact with water: 2 Na + 2 H2O -> 2 NaOH + H2
What is table fork?
It is curently made of stainless steal, or ather light metals that will be sanatary to be put in our mouth.
How are metals classified in the periodic table?
well if you want the classifications of metal on the periodic table there is: alkali metals alkaline earth metals transition metals and other metals
