Moseley’s experiments on X rays emitted from atoms led tothe concept of atomic numbers. (a) If arranged in order ofincreasing atomic mass, which element would come afterchlorine? (b) Describe two ways in which the properties ofthis element differ from the other elements in group 8A.

Q: A main group element with the valence electron configuration 2s22p3 is in periodic group__________…

A: Given electronic configuration is 2s22p3

Q: A main group element with the valence electron configuration 2s1 is in periodic group __________.It…

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Q: Q5: Which group and period aluminium element (13AI) belong * .to? Explain

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Q: Which halogen has the highest ionization energy? Explain why.

A: Hi, since you have posted multiple questions. We will answer the first questions. Kindly repost the…

Q: The first element of every group behaves differently from the other elements in the same group.…

A: Lithium shows anomalous behavior because it has the smallest size in the group. Since it has the…

Q: In group 15 elements, there is considerable increase in covalent radius from N to P but small…

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Q: 7.83 Referring to the periodic table, name (a) the halogen inthe fourth period, (b) an element…

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Q: Choose the most correct statement about atomic and ion radius. O a) The radius of a metal ion is…

A: Given : We have to choose the correct statement.

Q: What are the properties of the element flerovium (the period 7 element in group 14)?

A: Flerovium Flerovium is an atomic number 114 chemical element with the symbol Fl. Flerovium, which is…

Q: With the exception of helium, the noble gases condense toform solids when they are cooled…

A: The average distance between the nuclei of the bonded atoms is known as the bond length. The half of…

Q: Arrange in order of increasing nonmetallic character. (a) the Period 3 elements Cl, Si, and Na (b)…

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Q: Tungsten has the highest melting point of any metal in theperiodic table: 3422 °C. The distance…

A:

Q: Is astatine a nonmetal metal or metalloid

A:

Q: A main group element with the valence electron configuration 4s24p4 is in periodic group ______ .It…

A: The outer electronic configuration of the element is 4s2 4p4. This implies that it has 6 electrons…

Q: Write the name of element and classify it as a metal, nonmetal, or metalloid. Ba

A:

Q: A. A main group element with the valence electron configuration 3s1 is in periodic group? It forms a…

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Q: Explain what the name scandium(III) oxide meansin terms of electrons lost and gained, and…

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Q: Which element has the largest atomic radius? explain your answer in a separate sheet. O H O F O Na

A: Given :- symbol of elements H, F, Na and O  To identify :- element with largest atomic radius

Q: 2)Why did the observed chemistry of thallium mislead Mendelev to place the group 13 element (Tl) in…

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Q: Discussing this chapter, a classmate says, “Since elementsthat form cations are metals and elements…

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Q: Little is known about the properties of astatine, At, becauseof its rarity and high radioactivity.…

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Q: A main group element with the valence electron configuration 5s1 is in periodic group_______ .It…

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Q: The 18O:16O abundance ratio in some meteorites is greater than that used to calculate the average…

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Q: What are the compouds formed by the elements of Group VIIA and VIIB?

A: The elements in the periodic table are arranged in the increasing order of their atomic numbers.…

Q: Place the following in order of increasing atomic radius. As Br As < Br < O O < As < Br Br < As < O…

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Q: hich of the following is NOT true for the Group 1 A elements? a. Most of them are soft silvery…

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Q: Write the name of element and classify it as a metal, nonmetal, or metalloid. I

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A: Answer

Q: Write the name of element and classify it as a metal, nonmetal, or metalloid. K

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Q: Placed the elements N, O, As, Se in order from least to greatest atomic radius. a. N<0< As < Se b.…

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Q: Group the electronic configurations of neutral elements in sets according to those you would expect…

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Q: Describe 2 reasons the C atom is unique separate when compared to the elements closest in one period…

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Q: Until the early 1960s, the group 8A elements were calledthe inert gases. (a) Why was the term inert…

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Q: Some versions of the periodic table show hydrogen at the topof Group 1A(1) and at the top of Group…

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Q: Name each of the following oxides. Assuming that thecompounds are ionic, what charge is associated…

A: Since you have posted a question with multiple sub-parts, we will solve first three sub-parts for…

Q: The first element of every group behaves differently from the other elements in the same group.…

A: Lithium shows anomalous behavior because it has the smallest size in the group. Since it has the…

Q: Among the following, the element with the highest first ionization energy is:

A: We have to tell which option is correct from given choices having highest ionisation energy

Q: 5. Placed the elements N, O, As, Se in order from least to greatest atomic radius. a. N<0<As < Se b.…

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Q: Silicon is the foundation of today's Microelectronics. a) Indicate which other elements from group…

A: Elements from group IV of periodic table are: Z = 6, Carbon (C)  Z = 14, Silicon (Si) Z = 32,…

Q: Identify the group, period, block, and identity of each element, the characteristics of that type of…

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Q: Use the data from Appendix F to graph the variation ofatomic radius with atomic number for the…

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Q: Arrange in order of increasing nonmetallic character. (Use the appropriate symbol to separate…

A: Non metallic character : It is the tendency of elements to gain electron and form negative ions…