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ALKALI METAL OF FIRST GROP HAS 1 8ALENCE ELECTRON LIKE Na,K ETC. AND 2ND GROP ELEMENT HAS 2 LIKE Ca,Mg etc
Wiki User
∙ 12y ago
Wiki User
∙ 12y agoThey tend to have 2 valence electrons.
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What are metals that have 2 valence electrons?
alkaline earth metals (group 2 elements) have two valence electrons
What are metals that lose electrons easily called?
Alkali and alkaline earth metals. Cations.
How many electrons on their outer shell does bromine have?
Seven , outer shell electrons or valence electrons increase as you move from left to right on the periodic table not including the transition metals which vary, they start with 1 valence in the alkali earth metals , and finish with 8 valence electrons on the noble gasses (group 18)
Why alkali metals and alkali earth metals can form cation?
The properties of alkali earth metals and alkaline metals want to give up or share their valence electrons when bonding with a non-metal or polyatomic ion. For example, Sodium (Na) has a single valence electron, and if it bonds with Chlorine (Cl) which has seven valence electrons, Sodium would give up and share it's electron with Chlorine. Because an electron is negatively charged, and a proton, inside the nucleus, is positively charged, the Sodium atom has one less negative charge, and one more positive charge, rendering the ionic charge no longer neutral but +1. This is why metals are able to form cations.
Explain why alkali metals have a greater affinity for electrons than alkaline earth metals?
They don't, they actually have a greater tendency to lose electrons. This is for a number of reasons. First of all, the alkali metals form a stable cation by losing one electron, while the alkaline-earth metals need to lose two to form a stable ion. It takes more energy to remove one electron from an atom than it does to remove two. Additionally an alkaline earth metal has a greater positive charge on its nucleus and a smaller atomic radius than an alkali metal in the same row of the periodic table. This make it even harder to remove valence electrons. ------------ ?? WRONG: Alkali metals have a valence electron configuration of ns1 so they can accept another electron in the ns orbital. On the other hand, alkaline earth metals have a valence electron configuration of ns2. Alkaline earth metals have little tendency to accept another electron, as it woudl have to go into a higher energy p orbital.
What is the number of valence electrons for Alkali Earth Metals?
Alkali Earth metals have a single valence electron, and are found in the first group.
What are the valece electrons of alkali earth metals?
The alkaline earth metals have 2 valence electrons.
How do the alkali metals differ from the alkaline earth metals?
alkali metals have one valence electron, whereas alkaline earth metals have two valence electrons.
How many valence electrons do alkaline earth metals have?
The alkali earth elements have TWO valence electrons.
What element is a metal with 2 valence electron?
All alkali earth metals have 2 valence electrons.
What is the group of elements with the same number of valence electrons?
Group I (alkali metals) and group II (earth-alkali metals)
What kind of elements has less than 4 valence electrons?
Boron group, transition metals, alkaline earth metals and alkali metals are listed in the Periodic Table are having less than four valence electrons
What term describes the reactive nonmetals that have seven valence electrons?
alkali earth metals
What is a family of elements in group 2 with 2 valence electrons?
Alkali-earth metals
Alkali metal and alkaline earth metal have how many ionization energies?
Alkali metals (group 1 elements) have one valence electron. Hence have one ionization energy Alkaline earth metals (group 2 elements) have two valence electron. Hence have two ionization energy
Why do the alkaline earth metals react similarly?
All alkali earth metals have two valence electrons and they all form ions in +II oxidation state.
Why alkali metals are more reactive than alkaline earth metals?
All atoms want to do is make their valence shell full. In alkali metals they have all of their shells completely full except one valence electron. The alkali metals REALLY want to get rid of that electron, so they will react with many elements/compounds to get rid of that electron. In alkaline earth metals they have all of their shells completely full except for two valence electrons. They also want to get rid of those electrons but the alkaline earth metals are not as desperate to do so as the alkali earth metals which make the alkaline much less reactive than the alkali metals.
