Element X reacts with chlorine to form an ionic compound that has the formula XCl2. To which group on the periodic table could element X belong? a) group 1 b) group 2 c) group 13 d) group 15

Q: (a) Group 1A positive + The elements in group 1A configuration. an electron (obtain a charge) in…

A: Concept: Group I A  is the alkali metal group. It includes Lithium, sodium, potassium, rubidium,…

Q: Describe the arrangement of the elements in the modern periodic table.

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Q: Which of the following element will have the greatest difference between IE2 and IE3? He Be Mg Ca

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Q: MCQ 118: In the Periodic table, the Alkaline earth metals are found in A. Period II B. Period III C.…

A: Ans C) group 11

Q: In which set of elements would all memebers be expected to have very similar chemical properties? A)…

A: Periodic table represents the arrangement of the elements in increasing order of their atomic…

Q: Why did Mendeleev not include neon in his periodic table of 1871?

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

Q: Periodic Table of the Elements CI Mn Te I Xe lodine would have chemical properties most like which…

A: This is the long form of the periodic table which consists of horizontal rows called periods and…

Q: How the first row of the periodic table is formed ?

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Q: describe the arrangement of the 118 elements in the periodic table

A: To find: The arrangement of the 118 elements in the periodic table

Q: Explain how the periodic table tells you about the atomic structure of an element.

A: Applying basic concept of atomic structure determination.

Q: Compounds of NH4*, the alkali metal cations, and Ca²+, Sr²+, and Ba²+ Compounds of NH4* and the…

A: Given combinations, NaI and KBrLi2CO3 and CsIKOH and Ba(NO3)2K2SO4 and CrCl3NiBr2 and AgNO3

Q: Define periodic table?

A: DISCUSSED BELOW :

Q: Explain the contribution of Newlands’s law of octavesto the development of the modern periodic…

A: Periodic table is a tabular arrangement of  all the chemical elements present till date arranged in…

Q: The periodic table is a result of the periodic law. What observations led to the periodic law? What…

A: Given information,       The periodic table is a result of the periodic law.

Q: The halogen family, C ding. (p28)

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Q: You have made up a new non-metal element, Lolium, and produced a gaseous compound from it with a…

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Q: 8.2 Use the second member of each group from Group 1A to Group 7A to show that the number of valence…

A: Periodic table represents the systematic arrangement of elements in which the properties of these…

Q: The Rare Earth Metals also have names: a) Oxygen family and Chalcogens b) Calcium family and…

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Q: Explain the organization of an atom of carbon.

A: The protons, neutrons, and electrons are the salient features of an atom. The protons present in the…

Q: What is meant by Atomic Structure ?

A: The systematic structure of an atom is known as atomic structure. According to Dalton's law of atom,…

Q: How many electrons can have n = 50, l = 2.

A: Given that , Principal quantum number= n= 50 Azemuthial quantum number= l= 2

Q: Explain what is meant by the periodic table with an explanation of the divisions it consists of and…

A: Periodic table is the important tools in the history of chemistry . It arranged the atomic…

Q: Which of the following elements would you expect to be most similar: nitrogen, chlorine, barium,…

A: Elements belonging to the same group in the periodic table display similar properties.

Q: 2.) What is the number of free electrons per copper atom? Assume a density of 8.9 g/cm³ and an…

A:

Q: In element form, antimony (Sb) and bismuth (Bi) are both brittle, crystalline solids at room…

A: Sb,Bi both are brittle,crystalline solids are room temperature  and poor conductor of electricity.

Q: Give the general characteristics of the long form of Modern periodic table?

A: The modern periodic law states that “the properties or characteristics of the elements (both…

Q: The category of includes the majority of the elements on the periodic table. : Metals : Nonmetals :…

A: Periodic table comprises 18 groups and 7 periods. Metals are present on the left side of the…

Q: The lanthanides are a series of elements in the periodic table, from Z = 57 to Z = 70, that appear…

A: Elements in the period table the fills electrons in its valence f subshell are called lanthanides or…

Q: Hypothetical elements X and Y form a molecule XY2, inwhich both Y atoms are bonded to atom X (and…

A: A bond in a molecule is a type of attractive force between the atoms of the molecules. The type of…

Q: how many electron shells do most materials used in electronic and electrical applications contain?

A: 2 electron shells are used in electrical and electronic property of the material

Q: 10. The atomic number of silicon is (a) 8 (b) 2 (c) 4 (d) 14 11. The atomic number of germanium is…

A: Since we only answer up to 3 sub-parts, we’ll answer the first 3. Please resubmit the question and…

Q: ead about Eu. What does its symbol stand for? What is its atomic number? How is it produced? Boron…

A: Eu is an f-block element in the periodic table in the lanthanoid series. Note: As per the…

Q: How do you know that an element is a metalloid?

A: A metalloid is an element that has properties that are intermediate between those of metals and…

Q: Why do the rows in the periodic table get progressively longer as you move down the table? For…

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Q: 1. Which of the following elements would you expect to behave most like magnesium? A) Sodium B)…

A: Since you have posted multiple questions, we will solve only first question for you. If you want…

Q: Which of the following species would be expected to have chemical properties most similar to those…

A: The physical and chemical properties of an element are determined by the number of electrons in the…

Q: What do all of the elements in a given horizontal row of the periodic table have in common?

A: The horizontal rows of the periodic table is known as the period. While the vertical columns are…

Q: A) Period 3 alkaline earth metal: B) Period 5 noble gas: C) Period 3 element with 4 valence…

A: Answer a, b & c ) :  A) Period 3 alkaline earth metal = ?  B) Period 5 Noble gas = ?  C) Period…

Q: B. Guide Questions for Group II Cations 1. What metals are members of Group I Cations?

A: Note - Since you have asked multiple questions, we are supposed to solve only the first question for…

Q: When two or more atoms share electron it is known as a (A) Higgs Bond (B) Bohr Bond (C) Covalent…

A: A chemical bond is the attraction between the atoms or ions that enables the formation of the…

Q: An Element from Group 5A and Group 6A shared a Chemical Bond. This entails that

A: The 5A and 6A are the groups present towards the right side of the periodic table. The elements of…

Q: Which of the following statements about the periodic table is TRUE? a. The alkaline earth metals are…

A: Note: According to our guidelines we are supposed to answer only first question.  Kindly repost…

Q: Elements in Group 7A are known as the A) alkaline earth metals B) alkali metals C) chalcogens E)…

A: Periodic table represents the systematic arrangement of elements in which the properties of these…

Q: While the most common isotope of nitrogen has a mass number of 14 (nitrogen-14), a radioactive…

A: a) Since the isotopes are defined as the elements with same atomic number but different mass number.…

Q: Which element is solid at room temperature and a good conductor of heat and electricity

A: We have to find in the given options which element is solid at room temperature and a good conductor…

Q: fluorine (F) nitrogen (N) boron (B) iodine (I) Which two elements are in the same group and would…

A: The elements which have the same number of electrons in the outermost shell (or the same number of…

Q: Draw a diagram of the model of the structure of the atom.

A: The structure of an atom can be explained as follows: (1) Atom possesses a positively charged center…