. Flouride C. Potassium D. Oxide E. Silver F. Aluminum G. Bromide H. Cesium I. Hydride J. Lithium

Q: Electronic configuration of Chlorine is Select one: O 1s2 2s2 2p° 3s? 3p3 O 15 2s2 2p° 3s2 3p° O 1s…

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Q: 42. The formulas for the oxides of sodium, magnesium, alumi num, and silicon are, respectively,…

A:

Q: Describe and illustrate Dalton's Model, Thompson's Model, and Bhor's model of the atom.

A: Thompson's Model: J. J. Thomson performed experiments studying cathode rays and discovered that they…

Q: Why has the atomic model changed over time?

A: Atomic model are the model proposed by eminent scientist to explain the structure of the atom and…

Q: Based on the Rutherford model, which charged particles of an atom are easily transferred on rubbing…

A: Rutherford model is also called an atomic model or nuclear model or planetary model of an atom.

Q: Sara suggests that when electrons change in number within atoms, an ion is formed. Therefore, if the…

A: Ions are formed by addition or removal of electrons from the given atom, if the ion carries positive…

Q: Name the alkaline earth metal with 81 neutrons and 56 electrons.

A: Barium atomic number = 56 Calcium atomic number = 20 Strontium atomic number = 38 Radium atomic…

Q: What the term “Ion” refers to?

A: Ion is considered as atom, particle, or molecule with a charge present on it, that charge can be…

Q: Why were the results of Rutherford's gold foil experiment surprising? Oa. They demonstrated that the…

A: Ruderford does the gold foil experiment with bombardment of alpha particles over it.

Q: Will this atom gain or lose electrons when it ionizes? How many?

A: Explanation given as follows

Q: Determine the ions of Group IA

A: The ions of Group IA in the periodic table is to be identified.

Q: What are allotropes? Give an example. How are allotropesdifferent from isotopes?

A: Given term,        Allotropes and isotopes

Q: 2.90 grams of phosphorus is burned in the presence of oxygen and forms 5.14 grams of a phosphorus…

A: We can just subtract the mass of the phosphorus from the mass of phosphorus oxide and get mass of…

Q: What was the brilliance of Dimitri Mendeleev when discovering periodic law? What was so important…

A:

Q: What are the noble gases?

A: Noble gases has to be defined.

Q: What is the periodic table

A: The elements are the simplest chemical species, which has same number of protons in the atomic…

Q: how to write ionic formulas with transition metals? Provide with example.

A: Transition metals are d-block elements placed between s-block and p-block elements in the periodic…

Q: ient, that element could be a metal. metalloid. nonmetal.

A: Quantum number helps to predict the position of electron , spin of electron. Quantum numbers are of…

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

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Q: When Rutherford’s coworkers bombarded gold foil with a particles, they obtained results that…

A: Thomson model of atom is known as plum-pudding model. Based on Thomson model of atom, the atoms are…

Q: 1. Dmitri Medeleev organized the periodic table according to increasing atomic mass. How is the…

A: various scientist tried to classify elements on the basis of different properties to make study…

Q: What are some characteristic properties of elements to theleft of the elements along the…

A: The staircase in the periodic table consists of metalloids, which differentiates the metals and…

Q: Determine the charge of the ion  tungsten ion with 68 electrons

A: The charge on the ion is given by the difference between the number of protons and the number of…

Q: What type of Ion should the element Francium (Fr) make and what charge? What about Sulfur (S)?

A: Given To know ionic charge of Francium(Fr) abd Sulfur(s).

Q: In this following activity, use the pictures of each element and your research about the properties…

A: Given : We have to arrange the given compound in the group.

Q: Use your periodic table to give an example of an element that is/has: a. A metal that is NOT a…

A: The periodic  table is first invented by mendeleev's scientists.  It is based on atomic mass of…

Q: d. What is the charge for all of the elements in Group 2? e. What is the charge for all of the…

A: d) The general electronic configuration of group 2 elements is ns2. Thus they lose two e- and form…

Q: How is atomic number related to the identity of the atom? What might happen if the relationship…

A: The atomic number denotes  the number of protons in an atom of the element.

Q: Hydrogen isotope( Atomic number =1) with 1 neutron and 1 electron. carbon isotopes ( Atomic…

A: Mass number :-        It is the sum of total number of protons(P)  and the neutrons(N) present in an…

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: anything! Ouch! In order for the charges to car Positive charge) has to be . charge.) have a which…

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Q: A 15.21 gram sample of iron is heated in the presence of excess fluorine. A metal fluoride is formed…

A: Empirical formula, where all the elements that constituents a compound is represented by their…

Q: In the gold foil experiment, no α-particles stuck to the atom. If α-particles had stuck the atom,…

A: In actual Rutherford's gold foil experiment, most of the α-particles (which are positively charged)…

Q: Which of the following is incorrect? a) In the Lewis dot structure of the NH3 molecule, there is one…

A: Lewis structure  of NH3  is                 There is one unbounded electron pair on N2.If  water…

Q: What kind of charge is predicted to form by aluminum (Al)?

A: Given Element = Al Atomic Number of Al =13 Charge =?

Q: ( a ) Eva l u a te t h e expre s s i o n s 2 * 1, 2 * 11 + 32,2 * 11 + 3 + 52, and 2 * 11 + 3 + 5 +…

A: (a) In the expression, the total number of valence electron is calculated in which 2 is the number…

Q: Define an atom – Label each of the parts of the atom on the diagram to the right.

A: Since you have posted multiple questions, we are entitled to answer the first only.

Q: Describe the contribution of the following scientist in the development of the periodic table -John…

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Q: the formulas of sulfite, nitrite and phosphate ions are, respectively   a. SO42-, NO2-, PO42-…

A: When any salt , acid or base Decomposed,then different type of ions are formed. Ionic and covalent…

Q: Using coulomb's law explain the difference between attractive and repulsive interaction between ions…

A: According to coulomb's law force F is acting between two charges q1 and q2.

Q: What are the Elements? Classify the features of elements?

A: Given term,      Elements and the features of elements classification,

Q: Horizontal rows in the periodic table are referred to by what two terms?

A: Periodic table is a systematic arrangement of chemical elements on the basis of their electronic…

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: Two common oxides of iron are FeO and Fe2O3. Based on this information, tell how you would predict…

A: Iron has two common oxidation state, Fe2+ and Fe3+. To differentiate between Fe2+ and Fe3+ in…

Q: F forms an ion with a charge.

A: Anion :-  When a neutral atom gains electron then it forms negatively charged ion ion known as anion…

Q: use the periodic table to predict the charge associated with ions of main group elements.

A: 1-2 and 13-18th group elements are called main group elements.  Metals are given as +ve charge.…

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

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Q: What is a valence electron?

A: Valence electron is the electron which takes part in the bonding with other element. They are…

Atomic Structure

The basic structure of an atom is defined as the component-level of atomic structure of an atom. Precisely speaking an atom consists of three major subatomic particles which are protons, neutrons, and electrons. Many theories have been stated for explaining the structure of an atom.

Shape of the D Orbital

Shapes of orbitals are an approximate representation of boundaries in space for finding electrons occupied in that respective orbital. D orbitals are known to have a clover leaf shape or dumbbell inside where electrons can be found.