Alkali Metals

Alkali metals are the soft shiny metals that comprise group 1 on the periodic table.

2,190 Questions
Chemistry
Alkali Metals

Why is there a large increase between the first and second ionization energies of the alkali metals?

The alkali metals are Li,Na,K,Rb,Cs,Fr.If v see their general electronic configuration,v see that its (n-1)p6 ns1.That means the outer most s orbital contains 1 unpaired electron and just in the inner shell there is fully filled p orbital. 1st ionisation energy is the amount of energy required to remove 1st electron from the outermost shell of an isolated gaseous ion.here v see that the energy required 2 remove 1 electron from outermost shell will be very less cos it helps the atom to achieve fully filled stable electronic configuration. On the other hand,2nd ionisation energy is the energy required 2 remove an electron from isolated gaseous +1 atom,means atom from where 1 electron has already been removed. So here,it is very difficult to remove 1 more electron from the stable fully filled p orbital and large amount of energy is needed.Hence the 2nd IE shoots up considerably as compared to d 1st IE. Hope it's clear...:)..

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Chemistry
Periodic Table
Elements and Compounds
Alkali Metals

Which of the following groups of elements are in the main group alkali metals non metals transition elements or halogens?

Alkali metals
Nonmetals


Halogens

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Chemistry
Atoms and Atomic Structure
Alkali Metals

How many electron does alkali metal loses in a chemical reaction?

Only one electron.

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Acids and Bases
Alkali Metals

What alkali metal fewer than 10 protons in its nucleus?

mid

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Atoms and Atomic Structure
Acids and Bases
Alkali Metals

What alkali metal with fewer than 10 protons in its nucleus?

PB

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Chemistry
Alkali Metals

Why are alkali metals stored in oil or kerosene?

alkali metals are stored in oil to prevent a reaction with oxygen in the air.

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Alkali Metals

What similarities exist among the shells diagrams for the alkali metals?

They are shiny, soft, metals.

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Atoms and Atomic Structure
Alkali Metals

What is the alkali metal with fewer than 10 protons in its nucleus?

umm it has to be more than 50 and up so mid

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Elements and Compounds
Alkali Metals

I am not really an alkali metal but since i have only 1 electron i behave like them?

The answer is hydrogen. Hydrogen is in the alkali metal family. It has 1 electron and behaves like them. This is found on the periodic table of elements.

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Acids and Bases
Alkali Metals

Why are alkali metals called alkali metals?

When alkali metals react with water they produce an alkali (basic) solution.

No because they form basic oxides and they neutralise acids

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Acids and Bases
Alkali Metals

Which alkali metal has the largest electronegativity?

The Alkali metal with the greatest electronegativity is Lithium.

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Acids and Bases
Alkali Metals

Are alkali metals liquid solid or gas?

Alkali metals are solid.

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Atoms and Atomic Structure
Acids and Bases
Alkali Metals

Why do alkali metals tend to lose 1 valence electron?

Every alkali metal has only one electron in the outermost energy level. They give it away to form monopositive ions which have stable electron configurations ending with ns2 np6 (where n is a counting number between 2 and 7 inclusive).

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Elements and Compounds
Alkali Metals

What other elements are in the alkali metal family?

The family of alkali metals contain: lithium (Li), sodium (Na), potassium (K), rubidium (Rb), caesium (Cs), francium (Fr).

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Chemistry
Periodic Table
Similarities Between
Alkali Metals

Similarities between alkali metals and transitional metals?

Alkali metals and transitional metals are less alike than you may think. When you look at it, Alkali metals are all extremely reactive to water so must be kept under very controlled conditions. Transitional metals, however, really aren't very reactive to most household items. Actually, there are almost no common dangerous and/or reactive transitional metals. The few that come to mind are Mercury, Technetium (and this one doesn't even appear in nature), Tungsten, and possibly a few of the superheavies (104-112), and we honestly haven't spawned those elements for long enough to test them. Despite our best scientific efforts, these elements have only remained in existence for under very strict conditions. So where similarities go, the only one is that they are both metals.

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Acids and Bases
Alkali Metals

Why do alkali metals have the lowest ionization energies in their respective periods?

Because they have largest atomic size in their respective period so Ionization energy is lowest in the period.

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Acids and Bases
Alkali Metals

Which elements belong to the alkali metal family?

The alkali metals family contain: lithium, sodium, potassium, rubidium, caesium, francium.

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Acids and Bases
Alkali Metals
Alkaline Earths

What do alkali metals and alkaline earth metals have in common?

Both are extremely reactive and both are water soluble.

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Acids and Bases
Alkali Metals

Why are alkali metals stored in oil?

They are so reactive they even react with the moisture in the air. Storing under oil prevents this.

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Temperature
Alkali Metals

Which alkali metal is liquid at 15 degree celsius?

Cs

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Chemistry
History of Science
Alkali Metals

Where are the alkali metals and the halogens located on the periodic table?

alkali metals are located at the left of the periodic table and halogens to the right.

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Chemistry
Metal and Alloys
Alkali Metals

What metal burns with bright white flame and reacts slow to cold water?

Magnesium. O no it's copper sorry.........................

313233
Chemistry
Alkali Metals

What are Similarities and differences between alkali metals?

The alkali metals are a common family of elements found in group 1 of the periodic table. This group consists of the metals, Lithium(Li), Sodium(Na), Potassium(K), Rubidium(Rb), Caesium(Cs), Francium(Fr).

Alkali metals react violently with water and give off flammable hydrogen. Their reactivity increases as you go down the group Francium being the most reactive. Also thier melting point decreases as you move down the group. The alkali metals have closer similarities between the elements than in any other group of the periodic table. For example they are all soft and silvery in colour.

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Chemistry
Periodic Table
Alkali Metals

Why alkali metals are found in many common substances but are rarely found in pure form?

Alkali Metals are rarely found in pure form, and if they are they are normally stored under oil, because they react with water and water vapor in the air very violently. They explode if placed in water because they have one electron in their outer energy level and they want to give it away so badly. But if they are bonded with other elements, particularly non-metals, they lose that high reactivity.

101112
Earth Sciences
Alkali Metals

Why do halogens react so easily with Alkali Metals?

The electron configuration is why they react.

The Alkali metals have one electron in their outer shell and to complete their outer shell need 7 more electrons. They can give, take or share electrons with other atoms.

This is when the Halogens come in handy. The Halogens have 7 electrons in their outer shells, and need one more to complete the outer shell.

These can react very easily because they have both the perfect amounts to fill their outer shells and become compounds. Other atoms with other amounts to become atoms not ions needs another element to react with.

Hope this helps, Matt.

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