valency of chlorine

Published by on November 13, 2020

Answer:-Valency of an atom is the number of electrons gained, lost or shared so as to complete the octet of electrons in the valence shell. EduRev is a knowledge-sharing community that depends on everyone being able to pitch in when they know something. )Rutherford designed a model in which fast moving alpha (a)-particles were made to fall on a thin gold foil. around the world. Therefore, the number of electrons in the outer most shell of chlorine, sulphur, and magnesium atoms are 7, 6, and 2 respectively. 3. Remember, shells don’t neatly stack on top of each other, so the valence may not be the same as the total number of electrons in the outer shell. (vi) The energy of the atom changes when an electron jumps from one state (energy level) to another state (energy level). The distribution of electrons in chlorine, sulphur, and magnesium atoms are 2, 8, 7; 2, 8, 6 and 2, 8, 2 respectively. All atoms are characterized by their atomic numbers. 2 8 7 Therefore, the number of electrons is equal to the number of protons in an chlorine atom. Compare all the proposed models of an atom given in this chapter. Can you explain this answer? Therefore, there are 7 valence electrons in an chlorine atom. So, the atom as a whole is electrically neutral. (i) Atomic number is defined as number of protons present in the nucleus of an atom. ; The electronic distribution of Magnesium is 2,8,2.It means that magnesium has 2 electrons in its outermost shell. Therefore, there are 7 valence electrons present in an chlorine atom. This will lead to loss of energy of the moving electron and ultimately giving unstable model of atom. In a picture, the valence electrons are the ones in the outermost shell. (iv) The electrons of the atom revolve around the nucleus in definite circular paths known as orbits or which are designated as K, L, M, N etc. The Questions and Valence electrons are the number of electrons present in the outermost shell of an atom. chlorine ki valence electrons 7 hi honge chahe jiske respect mein dekh lo kyuki chlorine ke outermost shell mein 7 electrons hote h. This discussion on The valency of chlorine with respect to oxygen is __________.a)1b)3c)5d)7Correct answer is option 'D'. (v) Each orbit is associated with a fixed amount of energy. The most stable valence is one that fills or half-fills an atom’s electron shell. Thus, the valency of chlorine = 8 −7 = 1 The valency of sulphur = 8 − 6 = 2 In every stable atom the number of electrons is equal to the number of protons. iii)A very small fraction of (a)-particles were deflected by 1800, indicating that all the positive charge and mass of the gold atom were concentrated in a very small volume with in the atom. Stable means that atom has not formed a ion yet. How many valence electrons are in an atom of bromine? Question bank for Class 10. Chlorine has an atomic number 17. 2. Let’s understand the valency by following examples – 1. agree to the. Delhi - 110058. It means by valency we can know how the atoms of an element will combine with atoms of another element. For example, Ne has atomic number as 10 and sodium has atomic number as 11 but both of these have mass numbers as 22. The electronic configuration of chlorine can be written as 2, 8, 7. The answer is 7 .... 'cause the valency of an element  is a measure of its combining power with other atoms when it forms chemical compounds  or molecules, Because valence electrons in its outer shell is 7. ii)Very few particles were deflected from their path, indicating that the positive charge of the atom occupies very little space. Listen. The electron configuration of chlorine is #1s^2 2s^2 2p^6 3s^2 3p^5# or #"[Ne]"3s^2 3p^5#. Therefore, these orbits are also known as energy levels or energy shells. Explain with examples, (i) Atomic number, (ii) Mass number, (iii) Isotopes, and (iv) Isobars. © community of Class 10. )Neils Bohr. Explanation: To calculate the valency of the compound, the electronic configuration of the combining elements must be identified. Valency of Chlorine. The most common valences are in BOLD. Now, the last shell of chlorine atom has 7 electrons in it. outward from the nucleus. over here on EduRev! Since charged bodies moving in circular motion emit radiations. The valency of chlorine with respect to oxygen is __________.a)1b)3c)5d)7Correct answer is option 'D'. https://www.zigya.com/share/U0NFTjkwOTI4NDU=. Therefore, the number of electrons in the outer most shell of chlorine, sulphur, and magnesium atoms are 7, 6, and 2 respectively.Thus, the valency of chlorine = 8 -7 = 1 The valency of sulphur = 8 – 6 = 2 232, Block C-3, Janakpuri, New Delhi, the atomic number of chlorine is 17. so the no. Following rules are followed to fill electrons in different energy levels, (i) If n gives the number of orbit or energy level, then 2n2 gives the maximum number of electrons possible in a given orbit or energy level. 2020 Zigya Technology Labs Pvt. As long as an electron remains in a particular orbit, it does not lose or gain energy. You can see in the diagram below that there are seven electrons in the outermost circle. valency means the number of electrons present in the last shell i.e the valence shell, which can be used to donate someone or sharing. To explain stability of atom and atomic spectra, Bohr suggested that electrons are moving round the nucleus in orbits which have fixed energy shells. It is in Group 17, which means it has 7 valence electrons. How many valence electrons does Arsenic have. There is a loss or gain in energy of electron when it moves from one orbit to the other. Therefore, the number of electrons is equal to the number of protons in an chlorine atom. For example, chlorine has two isotopes with atomic number 17 but mass numbers as 35 and 37. ; In the case of , the combining elements are Magnesium and Chlorine. Thus isobars are different elements. How will you find the valency of chlorine, sulphur and magnesium? This means, that the number of electrons present in an chlorine atom is 17. Apart from being the largest Class 10 community, EduRev has the largest solved ii)The negative and positive charges are equal in magnitude. How will you find the valency of chlorine, sulphur and magnesium? Chlorine has 7 valence electrons . If the answer is not available please wait for a while and a community member will probably answer this All the atoms of an element have same atomic number. You can see in the diagram below that there are seven electrons in the outermost circle. On the basis of above experiment Rutherford concluded that: i)Most of the space inside the atom is empty because most of the (a)-particles passed through the gold foil without getting deflected.

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