Which group of metals are the most reactive? Group of answer choices A. alkaline earth B. transition C. alkali

Q: Which element has the greatest first ionization energy? A. C B. B C. N

A:

Q: Consider the redox equation. NO + H₂SnO3 → H₂O + Sn + HNO3 1. The atom that gained electron/s is…

A:

Q: III. Name one element in the Halogen Group.

A: Halogen group means, group 17 element in the periodic table. see below

Q: 8. Most elements on the periodic table at 25°C and 1 atm are (choose all that apply) a. conductors…

A: All the chemical elements of the periodic table can be broadly divided into three categories,…

Q: 24. Three oxides have the structures: giant molecular, intermediate between giant molecular and…

A: Structure of SiO2 is giant molecular structure.  Structure of CO2 is covalent molecule. GeO2 has…

Q: 4. Write the (ground state) electronic configuration for each of the following. a. antimony b. lead…

A: we have to determine the electron configuration of the given atoms and ions

Q: Chromium has _ valence electrons and _ are required?  a. 6, 4 b. 5, 5 c. 2, 0 d. 5, 2 e. 2, 4

A: The outer most shell present in an atom is called valence shell. The electrons present in these…

Q: Number of electrons, electron configuration,orbital diagram, and magnetic property of silicon.

A: The atomic number of Silicon is 14. So, the total number of electrons present in the Silicon is 14.…

Q: Use the periodic table to classify Ce (cerium) as a metal or a nonmetal, and then further classify…

A: Ce belongings to f block element and of Lanthanides series. and Lanthanides are metals.

Q: In general, atomic radii   A. decrease down a group and remain constant across a period. B.…

A: Trend in atomic radii in periodic table has to be given.

Q: Which of the following species is isoelectronic with Kr? Question 11Select one: a. Cl1− b.…

A: The objective of the question is to identify the species that is isoelectronic with Krypton (Kr).…

Q: What is electron configuration of outer shell of element which forms Me,03? Select one: a. ns' b.…

A: Given  Oxide of element = Me2O3 Electronic Configuration of outer shell of element = ?

Q: 4. Sodium sulfate is allowed to react with an aqueous solution of barium chloride. How many grams of…

A: Dear student since u have posted multiple questions, We will solve first question for you if you…

Q: 4. Explain what happens in terms of light transmitted and absorbed when a sample's concentration…

A: Beer’s and Lambert’s law relates the absorbance of light with concentration of the sample and…

Q: The alkaline earth metals are found in   Group of answer choices A. Group IA B. Group IIA C. Group…

A: Group A comprises of s and p block elements. Group B comprises of d and f block elements. Alkaline…

Q: What is electron affinity? Do electrons flow toward a chemical with a higher or lower electron…

A: Electron affinity is defined as the change in energy (in kJ/mole) of a neutral atom (in the gaseous…

Q: Copper is a common metal used in electrical circuits. Why are metals like Cu generally good…

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Q: a) to c) show the formulas of rubidium oxides and these are repeated in d) to f). From the options…

A: Answer:

Q: What is the formula when the halogen from 3rd principal energy level combines with alkaline earth…

A:

Q: 18.  The inner electrons of an atom that do not participate in chemical bonding are referred to as…

A: Ans: D ( The inner electrons of an atom that do not participate in chemical bonding are referred to…

Q: b. ns2np6

A: The Noble gas molecule is  2He = 1s2 10Ne = 1s2 2s2  2p6. 18Ar = 1s2 2s2 2p6 3s2 3p6. 36Kr= 1s2 2s2…

Q: What term refers to the amount of voltage an electron must possess to cause ionization?   Select…

A: Ionization is the formation of ions on dissolution of compound in water(solvent).

Q: 12. 13. Which of the following lists of elements is ordered by increasing number of valence…

A: In the above question, the periodic trends on the elements are described. The physical properties of…

Q: Give the noble gas abbreviated electron configuration for the two thallium ions using the orbital…

A: To solve this problem first we have to decide the number of core electrons . Then we will write the…

Q: 12. Alkaline earth metals possess how many electrons in their valence (outer) shell? These electrons…

A: Alkaline earth metal means it belong group IIA in the periodic table.All of them has 2 electron in…

Q: Halogens are present in group

A: Given a compound of halogens Halogens is a present of periodic table why is group  Periodic table a…

Q: 12. Draw the Lewis dot symbol for boron, B, how many unpaired electrons are there? A. 1 B. 2 C. 4…

A: Lewis structure represents the bonds through electron dots.

Q: The valence shell electron configuration of this group of elements is extremely stable, so stable in…

A: The configuration of group VIII- A elements is ns2 np6. These are called noble gases. These elements…

Q: Refer to the periodic table and write the predicted electron configuration for each of the following…

A: Given ions.Cd2+   and  P3–

Q: within the p-block element group, the elements to the right of the the temp-like zigzag line are ?…

A: The p-block starts with group number 13 and ends to group number 18. Total 6 groups are present in…

Q: Zinc

A: Most reactive elements : Zn is more reactive than the Hg and Cd ..

Q: 22. Name your two favorite elements in the group which has the general electron configuration ns’np.

A: The provided outer most shell electronic configuration is ns2,np3. Where, n represents outer most…

Q: 8. What is the relationship between an electron configuration and an orbital diagram? Draw the…

A: Given : Silicon  To find : Orbital diagram and electronic configuration  Solution : Silicon is an…

Q: MCQ 111: Halogens are the elements of A. Group-II B. Group-VII C. Group-II D. Group-IV

A: Answer B) - Group VII Halogen present in group VII

Q: 4. Which element has the greatest electron affinity?

A: Hey, since there are multiple questions posted, we will answer first question. If you want any…

Q: Regarding atomic radius which of the following is false? 1. The atomic radius of an anion is…

A: To find: The false statement

Q: The radius of a silver atom is 145 pm. How many silver atoms would have to be laid side by side to…

A: Given that:radius of silver atom (r) = 145 pmdistance (d) = 3.40 mmnumber of silver atoms (n) = ?

Q: 12. Which of the statements below BEST describes the elements in the region A? A A. Known as…

A: The region A represents S-block metals , which consist of Group 1 and Group-2.

Q: 6. Draw partial orbital box diagrams for each of the elements in the pair and then show how an ionic…

A: a) Ba and Cl form the molecule BaCl2 where Ba is having a formal charge of +2 and Cl is -1 on each…

Q: 91. Which property decreases from left to right across the periodic table and increases from top to…

A: Atomic radii decreases left to right across the period and increase top to bottom down the group.…

Q: 9. Consider the following grayscale electrostatic potential map. The regions are labeled as to…

A: We have to find the atom which is most electron poor.

Q: Which of the following is not the similar properties shared by the diagonal effect pair of beryllium…

A: Diagonal relationship between Be and Al: Both have tendency to form covalent compounds.e.g…

Q: 47. Of the elements shown in the Periodic Table, which is the most reactive? III IV V VI VII I I Li…

A: Most reactive element is Potassium(K). This is alkali metal so reactivity is highest. Option (d) K…

Q: Which of the following metals is ferromagnetic?   a. Copper   b. Nickel   c. Lead   d. Gold…

A: Ferromagnetism is a special type of paramagnetism in which the materials are strongly attracted to a…

Q: a. Write the complete Electron Configuration for Iron b. Draw the complete Orbital Diagram for Iron…

A: Atomic number of iron is equals to 26. According to this configuration let us proceed to the…

Crystal Structures

Solids are present all around us. They have different properties and applications. Diamond and graphite are two well-known solids. Diamond is the hardest material in the world and is used in making jewelry. Graphite on the other hand is soft. The lead of your pencil is graphite. Why are they so different in appearance and properties despite the fact they are chemically the same? Both are allotropes of carbon. The answer lies in the structure, the way constituent particles are arranged in the solids.