0
What else can I help you with?
Do alkali metals give or take electrons?
Alkali metals tend to give away electrons, forming positively charged ions. This is because alkali metals have one electron in their outermost shell, making it energetically favorable for them to lose this electron and achieve a stable electron configuration.
Are valence electrons held loosely by the atom?
Assuming you are talking about the electrons in their shells (not the displaced ones):It depends on the distance of those electrons from the nucleus. For example electron in the outer shell of potassium (K) is further away form the nucleus than electron in the outer shell of sodium (Na).It means that potassium can lose this electron in outer shell easier than sodium does, and therefore is more reactive than sodium.
Why are transition metals not as reactive as alkali metals and akaline earth metals?
They are less reactive because they have 2 electrons in the outer shell of the atoms and they like to be full and the alkali metals only have 1 electron in the outer shell of the atom, and it is easyer to give away 1 electron than 2 so they are more reactive than other elements. The electronegativity (Pauling values) is lower for the alkali metals.
Why are alkali metals more reactive than transition metals?
Groups 3-12 do not have individual names. Instead, all of these groups are called transition metals. The atoms of transition metals do not give away their electrons as easily as atoms of the Group 1 and Group 2 metals do. So, transition metals are less reactive than alkali metals and alkaline-earth metals are.
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).
How many electrons away from a noble gas are the alkali metals?
Alkali metals have one electron more than the noble gases.
Do alkali metals give or take electrons?
Alkali metals tend to give away electrons, forming positively charged ions. This is because alkali metals have one electron in their outermost shell, making it energetically favorable for them to lose this electron and achieve a stable electron configuration.
Why are alkali metals extremely reactive?
There is only one electron in the outer most electron shell. With the lighter (less massive) alkali metals, there are less electron shells, between the outer most electron and the nucleus. Since the nucleus is positive(Protons) it more strongly holds the outer most electron. However, when going down the Alkali (Group 1) metals there are more electron shells, so the outer most electron is further away from the nucleus, and thereby less strongly held. This is evidenced by Lithium (The least massive) which only slowly effervesces in water. At the bottom of the group Francium ( The most massive) is explosive in water. NB Francium is not used in the open laboratory because it is also radio-active.
Are valence electrons held loosely by the atom?
Assuming you are talking about the electrons in their shells (not the displaced ones):It depends on the distance of those electrons from the nucleus. For example electron in the outer shell of potassium (K) is further away form the nucleus than electron in the outer shell of sodium (Na).It means that potassium can lose this electron in outer shell easier than sodium does, and therefore is more reactive than sodium.
Why does the metallic character of alkali earth metals increase as you go down a group?
The metallic character of alkali earth metals increases as you go down a group because the outermost electron is further away from the nucleus, leading to weaker attraction between the nucleus and the outer electrons. This results in easier loss of electrons and higher reactivity, characteristics of metallic behavior.
Why are transition metals not as reactive as alkali metals and akaline earth metals?
They are less reactive because they have 2 electrons in the outer shell of the atoms and they like to be full and the alkali metals only have 1 electron in the outer shell of the atom, and it is easyer to give away 1 electron than 2 so they are more reactive than other elements. The electronegativity (Pauling values) is lower for the alkali metals.
Is the alkali metal more reactive than an alkaline-earth metal?
Yes, alkali metals are more reactive than alkaline-earth metals. All atoms want to have 8 electrons in their outer shells. Alkali metals have to give one electron away, where as alkaline-earth metals need to give two away which is less energetically favorable.
Does Francium give away electrons easily or hold on to them tightly?
Francium gives away electrons very easily due to its location in the alkali metal group, which makes its outer electron very loosely bound. This makes Francium highly reactive and likely to form ions by losing its single valence electron.
Why are alkali metals more reactive than transition metals?
Groups 3-12 do not have individual names. Instead, all of these groups are called transition metals. The atoms of transition metals do not give away their electrons as easily as atoms of the Group 1 and Group 2 metals do. So, transition metals are less reactive than alkali metals and alkaline-earth metals are.
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).
Do alkaline earth metals form ions with a plus 2 charge?
YEP! remember In science in order for the Alkali metals and Alkaline earth metals to become stable they must give AWAY electrons. The Earth metals have a Plus 2 charge because they give away 2 electrons on there outer shell!
Why basic character of alkali metals increases down the group?
The basic character of alkali metals increases down the group because as you move down the group, the atomic size increases and the outermost electron is further away from the nucleus. This results in a weaker hold on the outermost electron, making it easier for the metal to lose it and exhibit basic properties.
