Thus, the element in the second group of the periodic table will have an outermost s orbital
How many valence electrons does Group 2 have?
| Periodic table group Valence Electrons | Group 2 (II) (alkaline earth metals) 2 | Groups 3-12 (transition metals) 2* (The 4s shell is complete and cannot hold any more electrons) | Group 13 (III) (boron group) 3 | Group 14 (IV) (carbon group) 4 |
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Does Group 2 have 2 valence electrons?
| Periodic table group Valence Electrons | Group 1 (I) (alkali metals) 1 | Group 2 (II) (alkaline earth metals) 2 |
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How many electrons can group 2 elements lose?
To illustrate, an atom of an alkali metal (group 1) loses one electron and forms a cation with a 1+ charge; an alkaline earth metal (group 2) loses two electrons and forms a cation with a 2+ charge, and so on. For example, a neutral calcium atom, with 20 protons and 20 electrons, readily loses two electrons.
What element has 2 valence electrons and is shiny?
Why is the Periodic Table Arranged the Way it Is? ALKALINE EARTH METALS : All have 2 VALENCE ELECTRONS (electrons in the outer energy level) All are soft, shiny metals.
What are the elements in group two?
Group 2A — The Alkaline Earth Metals. Group 2A (or IIA) of the periodic table are the alkaline earth metals: beryllium (Be), magnesium (Mg), calcium (Ca), strontium (Sr), barium (Ba), and radium (Ra) . They are harder and less reactive than the alkali metals of Group 1A.
What is Group 3/12 called?
The elements in groups 3-12 are called the transition metals .
What is the only metalloid with 7 valence electrons?
The elements in this family are fluorine, chlorine, bromine, iodine, and astatine
What element has most valence electrons?
Elements with the most valence electrons are in group 18 . 4.
Which element has 4 energy levels and 5 valence electrons?
| Element Element Number Number of Electrons in each Level | Beryllium 4 2 | Boron 5 3 | Carbon 6 4 | Nitrogen 7 5 |
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Why is group 2 less reactive?
These elements are representative metals, metalloids, and nonmetals. ... The outermost electrons of the alkaline earth metals (group 2) are more difficult to remove than the outer electron of the alkali metals, leading to the group 2 metals being less reactive than those in group 1.
What is the least reactive element in Group 6?
Noble gases are the least reactive of all known elements.
What is the least reactive element in group 2?
The least reactive element in group 2 is beryllium . Even at red heat beryllium will not react with water and it does not react with dinitrogen (N 2 ).
What are the uses of group 2 elements?
Group 2 elements are ingredients in many important materials from cement to face cream . Let’s look at some examples in more depth. Oxides are formed when an element reacts with oxygen. Quicklime is one such oxide, specifically, calcium oxide.
Which element is in group 10 Period 6?
Which element is in group 10 Period 6? Group 10, numbered by current IUPAC style, is the group of chemical elements in the periodic table that consists of nickel (Ni), palladium (Pd) , platinum (Pt), and perhaps also the chemically uncharacterized darmstadtium (Ds).
