The nonmetals or non-metals are a group of elements located on the right side of the periodic table (except for hydrogen, which is on the top left). 2. The answer is Chlorine. of electrons due to increase in the atomic number. (iv) Which are the most metallic and the most non-metallic elements in above table. (AI, Foreign 2008) Answer: (a) In a period on moving from left to right, the atomic number increases, the number of shells remains the same, nuclear charge increases the force of attraction on electrons towards the nucleus. (b) As one moves from top to bottom in period, the metallic character of the elements increases. Element in the fourth period and group IV A 2. Mention the type of … 1. Answer: (a) Na atom is bigger in size this is because as we move from Na to Cl, the atomic number goes on increasing and the nuclear charge also increases. Note that there is no clear division between metallic and non-metallic character. F, Cl and Br are the elements each having seven valence electrons. The elements Li, Na and K each having one valence electron, are in period 2, 3 and 4 respectively of modern periodic table. Answer. What is the similarity between elements Li, Be, B, C, N, O, F and Ne belonging to the second period? Hope that helps. eg. Cesium - The most ACTIVE metal on EARTH! Hence Sodium is the most metallic element. Question 2. Metallic character decreases as you move from left to right across a period (row) of the periodic table. Element in the six period and group III A 5. Question 2 Options: A) Electron Affinity B) First Ionization Energy C) Second Ionization Energy D) Third Ionization The ... (in kJ/mol) for an element in period 3 are listed below. * Across a period the elements become (more/ less) non-metallic. Write two reasons responsible for late discovery of noble gases. Arrange these elements in the expected order of increasing non-metallic character. In sodium, only one electron per atom is involved in the metallic bond - the single 3s electron. These elements are distinctive in that they typically have low melting and boiling points, don't conduct heat or electricity very well, and tend to have high ionization energies and electronegativity values. Share 0 . It also has high reactivity. a) in Group 1 at the top b) in Group 1 at the bottom c) in Group 17 at the top d) in Group 17 at the bottom. Be reminded that you need to consider metals from Groups 1 and 2 and the non-metals from the halogen group (Group 7). The elements of the second period of the Periodic Table are given below: Li, Be, B, C, N, O, F, The elements of the second period of the periodic table are given along: Li Be B C N O F. Consider the following elements : Na, Ca, Al, K, Mg, Li (a) Which of these elements belong to the same period of the periodic table ? 1. (iii) As the number of valance electrons in a group is the same, all the elements in a group have the same valency. 4. The elements of the second period of the Periodic Table are given below: Li, Be, B, C, N, O, F (i) Explain why atomic radius decreases from Li to F. (ii) Identify the most metallic and non-metallic elements among the above elements. Additionally, which element is the most active metal? Similarly, are Group 3 elements metals? Write true or false for the following statements: Na, Mg, Li, Al, Si, F, P and Cl belong to the third period of the Modern periodic table. Additionally, which element is the most active metal? It is the second most abundant element and can be extracted from natural gas. The elements of the third period of the periodic table are given below: Group I II III IV V VI VII Na Mg Al Si P S Cl (a) Which atom is bigger - Na or Mg ? The metallic character of an element can be defined as how readily an atom can lose an electron. Hope that helps. (d) The most reactive non-metal: Fluorine (F). Elements on the left side of the periodic table are more likely to donate an electron than elements on the right side of the table. The elements of the second period of the Periodic Table are given below: Li, Be, B, C, N, O, F. Consider the following elements : Na, Ca, Al, K, Mg, Li (a) Which of these elements belong to the same period of the periodic table ? The most active nonmetal in any period is second to last (halogens), right before the noble gases. State which of the elements are – metallic ; non-metallic ; noble gases; in each of the periods 2 and 3. Name the most metallic and most non-metallic element of period 2. X would most likely be in the same group of the Periodic Table as : A diagonal relationship in S block elements exists between adjacent elements which are located in the second and third period of the periodic table. (ii) As the metallic character decreases along the period, the non-metallic character increases. The elements of the second period are:Li, Be, B, C, N, O, F, Ne(a) The element with highest first ionisation enthalpy: Neon (Ne). Select the element from the options listed below. Welcome to Sarthaks eConnect: A unique platform where students can interact with teachers/experts/students to get solutions to their queries. Group 3 is a group of elements in the periodic table. So, the metallic properties of elements tends to decrease across a period and increase down a group. (a) Na is bigger than Mg. The first three are metallic, silicon is giant covalent, and the rest are simple molecules. increasing non-metallic character. Answer. (b). Meanwhile, if we look at the periodic table trends as we move across a period from the left to the right, the metallic character usually decreases. Welcome to Sarthaks eConnect: A unique platform where students can interact with teachers/experts/students to get solutions to their queries. For example, let us consider elements of second and third periods. Chlorine and fluorine. Question 7. You may choose the metallic and the non-metallic element for this activity. (i) As we go down the group metallic character increases and decreases along the period. The most non-metallic element has the “ide” suffix. The natural element with the highest metallic character is cesium, which is found directly above francium on the periodic table. Moving from left to right across a period, the elements. Most metallic element is Na. It is an alkali metal having atomic number 3. The non-metals or non-metallic elements; hydrogen (H), carbon (C), nitrogen (N), oxygen (O), phosphorus (P), sulphur (sulfer) (S), selenium (Se), (Uuo may belong here) and the noble gases form a relatively small group with a step like pattern towards the left-hand side of the periodic table (hydrogen being the odd one out on the right of the table). (ii) On moving from left to right in a Periodic Table, metallic character decreases and non-metallic character increases. Ask questions, doubts, problems and we will help you. Most elements are metals. Sodium, magnesium and aluminium all have metallic structures. In the second period, lithium and beryllium are metals, boron is a metalloid while carbon, nitrogen, oxygen, fluorine and neon are non … (iii) As the number of valance electrons in a group is the same, all the elements in a group have the same valency. The fact that the metallic elements are found on the left side of the periodic table offers an important clue to the nature of how they bond together to form solids. (b) Identify the most (i) Metallic and (ii) Non-metallic element. 2. Element in the six period and group III A 5. (b) Identify the most (i) Metallic and (ii) Non-metallic element in period 3. These low melting and boiling points are typical of non-metals. (D) being in group IIA is most electropositive among given elements while E being in group VIIA is most electronegative among the given elements. Name the elements in the correct order of their increasing atomic numbers present in the first, second, and third short periods of the periodic table. 3. Name the most metallic element in second period and non metallic element. Compared to other elements in the third row its ionization enthalpy is the lowest. The most non-metallic element is F (fluorine). Q15. Hence, the electrons are pulled in closer to the nucleus which leads to contraction of the atom and thus atomic radius is decreased. (c) How does valency change from Li to Ne ? eg. The most metallic element of 2nd period is Lithium (Li). So, the most metallic element is Li (Lithium). This is related to the increase in the number of electrons in the outer shell of their atoms . Some tables vary, but all the metals should be everything including and on the left of Aluminum, Gallium, Tin, and Bismuth - excluding Hydrogen, and not counting Metalloids. fluoride suffix eg. (i) As we go down the group metallic character increases and decreases along the period. It pulls/ attract the valence electrons at the centre more efficiently and thus the atomic size decreases. Solutions . NEET Inorganic Chemistry Classification of Elements and Periodicity questions & solutions with PDF and difficulty level (ii) On moving from left to right in a period, the metallic character of elements decreases and non- metallic character increases. (a) It is because nuclear charge increases due to … The elements of the second period of the Periodic Table are givne below: (i) Explain why atomic radius decreases from Li to F. (ii) Identify the most metallic and non-metallic elements among the above elements. It is not found in nature as a free element. Most things on the left. Question 7. So. Question.2 The elements of the third period of the Periodic Table are given below: (a) Which atom is bigger, Na or Mg? (ii) Most non-metallic element is ‘F’ because it can gain electrons easily due to smallest atomic size. Despite the lack of specificity, the term remains in use in the literature of chemistry.. Osmium (from Greek ὀσμή osme, "smell") is a chemical element with the symbol Os and atomic number 76. Most metallic element … Determine which element has the suffix? The Fisher Scientific Interactive Period Table of Elements is a 21st century version of Mendeleev’s ingenious creation. During the sampling period, metallic elements constituted a minor fraction (5%) in PM 2.5, but exhibited significant threats to human health. When the group is understood to contain all of the lanthanides, it subsumes the rare-earth metals.Yttrium, and less frequently scandium, are sometimes also counted as rare-earth metals. Skip Navigation ... Second ionization energy. IE 1. chloride suffix eg. Of … Name the most metallic and most non- metallic elements in the Periodic Table. (b) Identify the most (i) Metallic and (ii) Non-metallic element in period 3. Students (upto class 10+2) preparing for All Government Exams, CBSE Board Exam, ICSE Board Exam, State Board Exam, JEE (Mains+Advance) and NEET can ask questions from any subject and get quick answers by subject teachers/ experts/mentors/students. group and periods of the periodic table. become less metallic. (i) On moving from left to right along a period of the Periodic Table, atomic number increases, i,e., number of protons and electrons increases which ultimately increases the nuclear charge. Answer to Which of the following is the most metallic element? Properties of Period 3 Elements (ii) On moving from left to right in a period, the metallic character of elements decreases and non- metallic character increases. Sulfur and chlorine. This is because on moving from left to right in a period, there is an increase in the no. Element in the fourth period and group VI A 4. Element X forms a chloride with the formula XCl 2, which is a solid with a high melting point. The elements of the second period of the Periodic Table are given below:Li, Be, B, C, N, O, F(i) Explain why atomic radius decreases from Li to F.(ii) Identify the most metallic and non-metallic elements among the above elements. The most metallic element is francium.However, francium is a man-made element, except for one isotope, and all isotopes are so radioactive they almost instantly decay into another element. This is because the capacity to lose electrons from outermost orbit of an atom (called ionisation energy) decreases. Element in the second period and group VII A The correct order is: (a) 12345<<<< (b) 54321<<<< (c) 41325<<<< (d) 54213<<<< Carbon is the fourth most abundant element in the universe by mass after hydrogen, helium and oxygen and is the second most abundant element in the human body by mass after oxygen, the third most abundant by number of atoms. NEET Inorganic Chemistry Classification of Elements and Periodicity questions & solutions with PDF and difficulty level Element in the fourth period and group VI A 4. As the elements in Period 3 are considered from left to right, they tend to a) lose electrons more readily and increase in metallic character b) lose electrons more readily and increase in nonmetallic character c) gain electrons more readily and increase in metallic character d) gain electrons more readily and increase in nonmetallic character 1. On the other hand non-metallic character increases with increase in atomic number across a period. The periodic table, also known as the periodic table of elements, is a tabular display of the chemical elements, which are arranged by atomic number, electron configuration, and recurring chemical properties.The structure of the table shows periodic trends.The seven rows of the table, called periods, generally have metals on the left and nonmetals on the right. Element X forms a chloride with formula, XCl 2, which is a solid with a high melting point. Answer: The most metallic elements is francium (group 1) and most non-metallic element is fluorine (group 17). The most active nonmetal in any period is second to last (halogens), right before the noble gases. (a) Element X is neon (Ne). Carbon forms covalent bonds with other non-metals with an oxidation state of −4, −2, +2 or +4. The Lanthanide and Actinide series (the two rows on the bottom) are also metals. The best way in choosing the combination that will form ionic bond is by computing the electronegativity difference between the two elements. For example, Lithium of group 1A and second period shows similarities with the properties of magnesium which are located in the 2nd group and 3rd period . Two elements X and Y belong to group 1 and 2 respectively in the same period of the periodic table. For example, let us consider elements of second and third periods. On the left hand side of period 3 we find the elements sodium, magnesium and aluminium.

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