The period 2 element would be more reactive. What is the least reactive element.
Valence Electrons Ck 12 Foundation
Element A is a non-metal.
. So it is a non-metal as it forms negative ion. Hydrogen Lithium Sodium Potassium Rubidium Cesium and Francium are elements that have only one valence electron. Valence electrons also determine the electrical conductivity of an element.
So its valency is 1. The most reactive nonmetals are the halogens eg F and Cl. A A belongs to 17th group has 7 valence electrons it can gain 1 electron to become stable.
Therefore elements whose atoms can have the same number of valence electrons are grouped together in the periodic table of the elements. The elements with one valence electron are all group 1 elements on the left of the periodic table. Table salt is composed of sodium and chlorine in a 11.
All the alkali metalslithium sodium potassium and so onhave only one electron in their valence shell. A is a non-metal because it can gain one electrons to form anion. A valence electron can either absorb or release energy in the form of a photon.
Its not a nonmetal as they are smaller less p and e. What element has only one valence electron. All of them meet the criteria to be called a metal although francium hasnt been studied thoroughly due to its extreme radioactivity.
And were specifically told that its a non metal. Mendeleev left gaps in his periodic table because. Youre to apply the noble gas on the line above the factor which youre doing the configuration for.
Consequently utilising basically any factor. The most reactive kind of metallic element is an alkali metal of group 1 eg sodium or potassium. Because this one electron is likely to be far from the nucleus it feels little attraction to the atom.
How many valence electrons does this element have. C has more number of shells ie it has 3 shells because it belongs to 3rd period whereas A has 2 shells as it belongs to 2nd period. Unknown metal of 8s can have either 1 electron or maximum 2 electronsIf it is 8s1 it will be alkali metal or if 8s2 then it will corrospond to alkaline metal.
Determine which element s are likely to have their electrons stripped away in the formation of. Alkali metals tend to lose this electron when they participate in reactions. Nonmetals tend to attract additional valence electrons to form either ionic or covalent bonds.
Have one valence electron that is easily removed to form a positive ion D. So ANSWER is METAL Sn or tin. 39The number of valence electrons in each atom of an element affects the elements Aatomic number Bmass number Cnumber of electron shells Dnumber of valence electrons 40The elements in Group 2 have similar chemical properties because each atom of these elements has the same A22 B2 C32 D4 41What is the total number of valence.
Element A is a non-metal. There are no non-metals with one valence electron. Depending on this nature elements can be metal non-metal or metalloid.
It could be so far it could be selenium. Valence Electrons and Reactivity. Um its not gonna be delirium or polonium because those air medal eyes and its specifically a knot.
That leaves metal like tin or a nonmetal nearby that have incomplete p orbitals. Ionic bonds are formed between metal and nonmetal elements. What are some possible identities for this element.
Have two valence electrons that form compounds with calcium and magnesium. Nonmetals such as chlorine tend to gain valence electrons in the formation of ionic bonds. B C has 3 shells A has 2 shells so C is bigger than A.
Its not a transition metal as they have unfilled d orbitals. This is because such an atom has only a single valence. An unknown element is a nonmetal and has a valence electron configuration of ns 2 np 4 a.
Potassium has only one valence electron and it is stripped away in the process of forming an ionic bond. Element B has a valency of 1. The period 2 element would be more reactive because the attractive force of protons is stronger when there are fewer neutrons interfering.
9 rows A valence electron can either absorb or release energy in the form of a photon. Identify the nonmetal in period 2 that is more reactive than nitrogen and. Identify a nonmetal with 1 valence electron.
Element A has 6 valence electrons Element B has 1 valence electron a Classify each of these elements as a metal or a non- metal. Atoms of element C has a larger size than atoms of element A. A is a non-metal because it can gain one electrons to form anion.
When the next element was a nonmetal. The number of valence electrons in an atom governs its bonding behavior. The table was too small.
Would this element have a larger or smaller radius than barium. Up to 256 cash back The element whose -2 anion has the same electronic configuration as argon. His element could be oxygen.
Atoms of element C has a larger size than atoms of element A. What is the formula of the compound this element would form with potassium. Looking at the same nonmetal group on the periodic table how does the reactivity of an element in period 2 compare to the reactivity of an element in period 4.
Either it will loose 1 or 2 electrons as they case may be. They have one less electron configuration than a noble gas so they require only one additional valence electron gain an octet. Was the four of his lm there for potassium.
Answer 1 of 3. C B has one valence electron it can loose this electron to become stable. Element B has a valency of 1.
Boron B silicon Si germanium Ge arsenic As antimony Sb tellurium Te polonium Po and astatine At are the elements found along the step like line between metals and non-metals of the periodic tableMetalloids. C has more number of shells ie it has 3 shells because it belongs to 3rd period whereas A has 2 shells as it belongs to 2nd period. B Use Lewis symbols to show how A and B would form a compound.
Its going to oxygen us as ah elements like auction sulfur.
Chemistry Classroom Teaching Chemistry Chemistry Lessons
Valence Electrons Read Chemistry Ck 12 Foundation
In This Next Section Of The Class I
0 Comments