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What happens to the electrons in the outer shell when the alkali metals react with other elements?
the alkali metals have 1 electron in their outer most shell. in order to obtain a full outer shell they have to lose this electron. so when they react with another metal they lose this electron and the outer most shell.
How many valence electrons must calcium lose or gain to have 8 valence electrons?
It loses 2 electrons to obtain the argon configuration of 8 valence electrons.
Why are metals good conductors of electricity?
Because metals release negative ions which conduct electricity. Because of the force of attraction between valence electron and also because the free electrons can move freely through the lattice carrying a charge.
Have two valence electrons and get to a stable electron configuration by using two electrons?
You can achieve a stable electron configuration by using two electrons by forming a covalent bond with another atom that also has two valence electrons. In this way, each atom can share its valence electrons to achieve a full outer shell and achieve stability.
How can the atom K obtain eight valence electrons?
Potassium (K) can achieve eight valence electrons by losing one electron to form a stable cation with a +1 charge. In this form, it will have the same electron configuration as the nearest noble gas (argon), which has a full valence shell with eight electrons.
What is the difference from a ionic bond and a covalent bond?
A covalent bond is formed when two or more non-metallic atoms share a pair of valence electrons.Non-metal atoms will want to share electrons in order to obtain a full valence energy level.Ionic bonds results when electrons are transferred from metal atoms to non-metal atomsRecall that metals are on the left side of the periodic table (alkali metals and alkaline earth metals) and non-metals are on the right side (oxygen's family and the halogens, for example)The metal atoms will lose valence electrons to become positive ions (cations) while the non-metal atoms will gain electrons to form negative ions (anions).
What happens to the electrons in the outer shell when the alkali metals react with other elements?
the alkali metals have 1 electron in their outer most shell. in order to obtain a full outer shell they have to lose this electron. so when they react with another metal they lose this electron and the outer most shell.
How many valence electrons must calcium lose or gain to have 8 valence electrons?
It loses 2 electrons to obtain the argon configuration of 8 valence electrons.
The valency of oxygen is?
two , two valence electron Oxygen has two valence electrons since it must gain two in order to obtain 8 electrons in its outermost energy level. However, the number of valence electrons is six--not two. The valence and valence electrons are only the same for metals in Groups 1, 2, and 3.
When the outermost enegery level of an atom is full it tends to be what?
The outermost shell in an atom is also known as the valence shell. When an atom is able to donate or obtain electrons to obtain a noble gas electron configuration, it is said to be stable. Generally, metals are electron donors and non metals are electron acceptors.
Why are metals good conductors of electricity?
Because metals release negative ions which conduct electricity. Because of the force of attraction between valence electron and also because the free electrons can move freely through the lattice carrying a charge.
Have two valence electrons and get to a stable electron configuration by using two electrons?
You can achieve a stable electron configuration by using two electrons by forming a covalent bond with another atom that also has two valence electrons. In this way, each atom can share its valence electrons to achieve a full outer shell and achieve stability.
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 do all the elements of alkaline earth metal have similar properties?
All of the members of the alkali metal family have one valence electron (in their outermost s orbital). Therefore, they are strong reducing agents and tend to react in such a way as to lose this electron in order to obtain a more stable electron configuration.
When moving down a group ( family) in the periodic table the number of valence electrons?
When moving down a group, the number of valence electrons do not change. This similarity yields the elements in the same groups to have same chemical properties. For example, elements in group 17 obtain one electron to stabilize as -1 ion.In a group, all the elements have a same number of valence electrons. So their chemical properties are equal. But the physical properties vary.Valence electrons are the electrons in outermost shell.The valence electrons remain same in a group. For example-Group-1 elements have 1 valence electron.
How can the atom K obtain eight valence electrons?
Potassium (K) can achieve eight valence electrons by losing one electron to form a stable cation with a +1 charge. In this form, it will have the same electron configuration as the nearest noble gas (argon), which has a full valence shell with eight electrons.
What group of metals has a valence of positive two?
Many metals have a possible +2 oxidation state. Some metals do obtain it preferentially, however: Group 12 metals (Zinc, Cadmium, Mercury) tend to have +2 oxidation states due to their electron configuration (d10, s2) retaining a full d orbital when 2 electrons are removed. Group 8 metals (like Iron) also commonly have +2 oxidation states, possibly due to the 'half filled shell' effect.
