They all have an extra electron in their outer most orbit.
The alkali metals are the metals in Group 1 (the first column of the periodic table). Hydrogen is also in Group 1, and so is technically considered to be part of the alk … ali metal group/family. Hydrogen is in fact a non-metal, however, and does not generally exhibit behavior similar to the other Group 1 elements. 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 Answers. Best Answer: All the alkaline earth metals have two electrons in their valence shell. Here is the little list of the Alkaline earth metals beryllium (Be), magnesium (Mg), calcium (Ca), strontium (Sr), barium (Ba) and radium (Ra). Source(s): cazzaboi · 7 years ago. The alkali metals are a group (column) in the periodic table consisting of the chemical elements lithium (Li), sodium (Na), potassium (K), rubidium (Rb), caesium (Cs), and francium (Fr). When the alkali metals react with the heavier elements in the carbon group, ionic substances with cage-like structures are formed, such as the silicide M 4 Si 4 (M = K, Rb, or Cs), which contains M + and tetrahedral Si4− 4 ions. All of the discovered alkali metals occur in nature: in order of abundance, sodium is the most abundant, followed by potassium, lithium, rubidium, caesium, and finally francium, which is very rare due to its extremely high radioactivity and thus occurs only in traces due to its presence in natural decay chains. When the alkali metals react with the heavier elements in the carbon group, ionic substances with cage-like structures are formed, such as the silicide M 4 Si 4 (M = K, Rb, or Cs), which contains M + and tetrahedral Si4− 4 ions. The alkali metals, halogens and noble gases are three important groups in the periodic table. The alkali metals are soft, reactive metals. They react vigorously with water and become more reactive as you go down the group. The halogens are reactive non-metals. They become darker as you go down the group. The alkali metals have the following properties in common: 1  they have low melting and boiling points compared to most other metals. 2  they are very soft and can be cut easily with a knife. 3  they have low densities (lithium, sodium and potassium will float on water). They are the elements in the first column of the periodic table: lithium (Li), sodium (Na), potassium (K), rubidium (Rb), cesium (Cs), and francium (Fr). See the Relate … d Questions to the left for more information about the alkali metals and their properties.  . 13 people found this useful. 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 They are all soft, highly reactive metals with low melting points. They react vigorously or violently with water, producing hydrogen gas and the corresponding hydroxide. They form 1+ ions and their compounds are water soluble. 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 Structurally, they have in common an outer s-electron shell which is full;. that is, this orbital contains its full complement of two electrons, which these elements readily lose to form cations with charge +2, and an oxidation state (oxidation number) of +2. All the discovered alkaline earth metals occur in nature. Experiments have been conducted to attempt the synthesis of element 120, the next potential member of the group, but they have all met with failure. Best Answer: Alkalines are all Arrhenius bases and share many properties with other chemicals in this group (Arrhenius bases form hydroxide ions when dissolved in water). Common properties of alkaline aqueous solutions include: Moderately concentrated solutions (over 10-3 M) have a pH of 10 or greater. first of all the alkali metals or group 1 DON'T same valance electron or the outer most electrons we can tell that from electron configuration. three things in common: 1. not free element.
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what do all the alkali metals have in common