This problem has been solved! Question 2 . Bromine, Br, is the element farthest to the right of those given, so, with 7 valence electrons, it has the most. 6. Valence electrons are those electrons that reside in the outermost shell surrounding an atomic nucleus.Valence electrons are of crucial importance because they lend deep insight into an element’s chemical properties: whether it is electronegative or electropositive in nature, or they indicate the bond order of a chemical compound – the number of bonds that can be … D. V. Answer. Number of valence electron = 2. 3 points . 1 s 2 It has 4 valence electrons. Which elements has the fewest valence electrons? The valence electrons for a neutral atom is always definite, it cannot be varied (more or less) in any condition for a particular atom and may or not be equal to its valency. Difference between valence electrons and valency. Which element has: (a) two shells, both of which are completely filled with electrons? How many dots appear in the dot structure for calcium ion, Ca^2+? silicon magnesium lithium. Gallium is the most reactive because it has many more neutrons than protons. Number of valence electron = 5. Hydrogen. High School. The electronic configuration 2, 8, 2? A total of two shells, with three electrons in its valence shell? Lithium. It is present in group-14.Titanium has 4 valence electrons. the element with seven valence electrons will be more reactive. Element with a total of three shells, with four electrons in its valence shell has an electronic configuration: 1 s 2 2 s 2 2 p 6 3 s 2 3 p 2 which is the electronic configuration of Silicon. SURVEY . Carbon. •For atoms with 4 valence electrons, it can go either way. Electronic configuration:- Shells: K L M Electrons arranged: 2 8 4 2 See answers •For atoms with 8 valence electrons, there is no change. Click hereto get an answer to your question ️ An element has 2 electrons in its N shell(i) What is its atomic number ? (e) twice as many electrons in its second shell as in its first shell? The reason for this is that elements want to always want to have a full valence shell (they always want 8, like a noble gas). The valence electrons are the electrons in the outermost electron shell of an atom.. That is why elements whose atoms have the same number of valence electrons are grouped together in the Periodic Table.. Generally, elements in Groups 1, 2, and 13 to 17 tend to react to form a closed shell, corresponding to the electron configuration #s^2p^6#.. In chemistry and atomic physics, an electron shell may be thought of as an orbit followed by electrons around an atom's nucleus.The closest shell to the nucleus is called the "1 shell" (also called the "K shell"), followed by the "2 shell" (or "L shell"), then the "3 shell" (or "M shell"), and so on farther and farther from the nucleus.The shells correspond to the principal quantum … *Response times vary by subject and question complexity. Which of the following elements has least number of electrons in its M shell? Valence Electrons: The outermost electrons of given atom are known as valence electrons. SURVEY . It is in the third period. Tags: Question 15 . in outermost orbital). 16. To be an atom, it must have a number of electrons equal to its number of protons; the element with the lowest number of protons is hydrogen (with only 1). Periodic Table of Elements with Valence Electrons Trends. What would you expect of element B, which has 4 valence electrons, and element C, which has 7? (d) a total of two shells, with three electrons in its valence shell? Question 3 . See Answer. 4. The valence shell is the outer most shell which contains the valence electrons. answer choices . Bromine has atomic number of 35. ... What element is represented in this Bohr Model? In the below periodic table you can see the trend of Valence Electrons. The chemical properties of an element depend on the number of valence electrons present. Top Answer. Arsenic, with an electron configuration of 1s 2 2s 2 2p 6 3s 2 3p 6 4s 2 3d 10 4p 3, has a total of three electrons in its valence shell.. Hydrogen needs _____ electrons in its valence shell to be stable. Two shells, both of which are completely filled with electrons? Silicon is p-block element. Br, N, He, Or O. silicon magnesium lithium oxygen 1. C. Ti. 9 points soniahstyle Asked 12.04.2017. 1 s 2 2 p 6 b. Log in. Chemistry. Wiki User Answered 2017-01-05 20:53:43. Atomic number of an element is 16 State (1) To which period it belongs. 120 seconds . oxygen. The valence electrons an element has in its outer shell, the easier it is to complete. Asked by Wiki User. Which element can expand its valence shell to accommodate more than eight electrons… 1. •For atoms with MORE than 4valence electrons, they’re going to gain/stealelectrons to form negative anions. Would you expect element A to share, donate, or accept electrons? Silicon is an element with a total of three shells and four electrons in its valence shell. Going back to your question, you need to check the position of each of the above elements in the periodic table and come up with the most likely answer. 8. The valence shell is the outermost shell of an atom in its uncombined state, which contains the electrons most likely to account for the nature of any reactions involving the atom and of the bonding interactions it has with other atoms. Wiki User Answered 2014-07-25 20:18:51. 6. Which of the following atoms has the fewest electrons in its valence shell? a. silicon b. magnesium c. lithium d.oxygen 3. Top Answer. a. Cesium [Cs] b. Calcium [Ca] c. Chromium [Cr] d. Carbon [C] e. Chlorine [Cl] 20. Which group has the greatest number of valence electrons? Which element has the fewest number of electrons in its valence shell? Q. Answer is: lithium has the fewest valence electrons. 3 points . Barium has atomic number of 56. These are the … Which element has. Which of the following atoms has the greatest number of electrons in its valence shell? Its atomic number is 14 and the electronic configuration is 2,8,4. Valence electrons are the electrons present in the valence shell of an atom of an element. Theoretically, the O Shell could contain fifty electrons and the P shell could contain seventy-two electrons, but no naturally occurring element has more than thirty-two electrons in any single shell. 1. For facts, physical properties, chemical properties, structure and atomic properties of the specific element, click on the element … The maximum number of valence electrons for an atom is eight. 120 seconds . 2. Join now. So, the element is Silicon. What element has the fewest valence electrons? This tendency is called the octet … The electron shells an element has, the easier it is to fill its outermost shell. Number of valence shell electrons increases as we move from left to right across the periodic table. Of the five elements, only Si has subshells whose principal quantum number is 3. Number of valence electron = 7 Hydrogen and all 'Group I' … Valence electrons are the total number of electrons present in the outermost shell of an atom (i.e. Valence Electrons. Silicon is the most reactive because it has an equal number of protons and neutrons. 4. (iv) State the name assigned to this group. True See the answer. The number of valence electrons in an atom governs its bonding behavior. (c) a total of three shells, with four electrons in its valence shell? Which of the following atoms has the fewest electrons in its valence shell? a. xenon b. calcium c. aluminum d. rubidium 2. a. zero b. one c. two d. eight 4. 1) Electron configuration of lithium: ₃Li: 1s² 2s¹, it has one valence electron in 2s orbital. Element Atomic Number Electronic configuration K 19 … See Answer. Tags: Question 31 . So therefore hydrogen has … Aluminum. Question: Which Element Can Expand Its Valence Shell To Accommodate More Than Eight Electrons? 8. Find an answer to your question Which of the following atoms has the fewest electrons in its valence shell? Join now. Fluorine is the most reactive because it has 7 electrons in the outer shell. Element A has 2 electrons in its valence shell (which is complete when it contains 8 electrons). Each Group 16 element has how many valence electrons? A. K. B. Ni. Which … The most reactive kind of metallic element is an alkali metal of group 1 (e.g., sodium or potassium); this is because such an atom has only a single valence electron… To get the number of valence electrons in the n = 3 shell, you just have to add all the exponents (i.e., for 2p^6, it's 6... meaning there are 6 valence electrons for that particular subshell) of the subshells whose principal quantum number is 3. (b) the electronic configuration 2, 8, 2? Median response time is 34 minutes and may be longer for new subjects. Asked by Wiki User. Boron has atomic number of 5. Number of valence electron = 3. Question 1 Which of the following atoms has the fewest electrons in its valence shell? answer choices . Log in. •For atoms with LESS than 4valence electrons, they’re going to lose/give upelectrons to form positive cations. Group 17 elements have 17 valence electrons, and Group 18 elements (noble gases) have in most cases eight valence electrons with the exception of helium that only has two. Click hereto get an answer to your question ️ Which element has three shells with 5 electrons in its valence shell? 2) Electron configuration of beryllium: ₄Be: 1s² 2s², it has two valence electrons in 2s orbital. Bismuth has atomic number of 83. The electron configuration for the oxygen atom is a. (ii) State its position in periodic table(iii) Is it metal or non - metal ? (2) The number of valence electrons in the element asked Mar 4, 2019 in Chemistry by Anjal ( 76.8k points) Therefore, elements whose atoms can have the same number of valence electrons are grouped together in the periodic table of the elements.. The given atom has 5 valence electron in valence shell and major component of the air.Also exist as diatomic molecule. A total of three shells, with four electrons in its valence shell? Reactivity in nonmetals as you go from left to right in a group, and as you go from top to bottom.
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